Alfred Hitchcock and Cary Grant brought out each other’s best attributes in their four collaborations from 1941 to 1959. Hitchcock was the only director who exposed the dark, brooding side of Grant’s suave image, with a sexual tension that somehow evaded the censors. Grant’s presence, in turn, lent a sophistication and elegance rarely seen in Hitchcock’s other works.

Suspicion (1941), Notorious (1946), To Catch a Thief (1955) and North by Northwest (1959) explored Hitchcock’s themes of concealment, degradation and emotional manipulation. By expanding Grant’s acting range, Hitchcock revealed a dark romanticism behind the charm — screwball humor on the edge of a precipice.

Undoubtedly, both men benefited from their partnership. However, imagine if neither had made Notorious and North by Northwest. Hitchcock’s reputation would have endured regardless, but for Grant, those films were essential. In fact, it was Hitchcock who lured Grant from an early retirement to make To Catch a Thief and, in the process, helped revive the screen actor’s career.

Hitchcock and Grant shared a common bond that became more evident with each successive film. They were lonely, insecure men who came from lower middle-class English backgrounds. Furthermore, both were somewhat fearful of women, perfectionistic in their working methods, and enthusiastic about black humor. These character traits helped provide the foundation of their professional relationship.

The element of danger in Cary Grant first emerged in Suspicion. Cut from the same stylistic cloth as Rebecca, Hitchcock referred to Suspicion as the “second English picture I made in Hollywood.” However, Hitchcock began shooting with an unfinished script, resulting in a troubled production and an uncertain dramatic tone.

In this disappointing adaptation of Francis Iles’ novel Before the Fact, Hitchcock cast Grant against type as Johnnie — a reckless, irresponsible playboy who later marries the shy Lina (played by an ineffectual Joan Fontaine, who somehow won an Academy Award for her performance). Only after their marriage does the naive Lina discover that Johnnie is a habitual liar and spendthrift with no money of his own. Because of mounting circumstantial evidence, Lina suspects that her husband is a murderer.

At this point, the film deteriorates into an endless charade as Lina’s belief in Johnnie fluctuates between guilt and innocence. Lina’s psychological tug of war becomes ludicrous once it is revealed that Johnnie never was a murderer — thereby negating everything that has come before.

If Hitchcock and Grant had their way, Suspicion would have evolved into a disturbing thriller rather than a missed opportunity. Unfortunately, RKO had other ideas and altered the framework of Suspicion with the same callous insensitivity that marred Orson Welles’ The Magnificent Ambersons.

When interviewed by François Truffaut in 1962, Hitchcock expressed dissatisfaction with Suspicion and revealed his original ending: “Cary Grant [was] to bring [Joan Fontaine] a glass of milk that’s been poisoned and [she] has just finished a letter: ‘Dear Mother, I’m desperately in love with him, but I don’t want to live because he’s a killer.’ Then, Cary Grant comes in with the fatal glass and she says, ‘Will you mail this letter to Mother for me, dear?’ She drinks the milk and dies. Fade out and fade in on one short shot: Cary Grant, whistling cheerfully, walks over to the mailbox and pops in the letter.”

Seen today, Suspicion is the weakest Hitchcock-Grant collaboration even without RKO’s interference. Grant’s portrayal lacks the polish and depth that would become evident in his remaining work with Hitchcock. Furthermore, there is an absence of sexual chemistry between the Grant and Fontaine characters. Hitchcock also sensed this lack of rapport and, in future films, made certain that Grant was paired with more romantically compatible costars.

The most intriguing development in Suspicion is Hitchcock’s expansion of Grant’s screen persona. During the film’s first half, Grant plays his scenes in a screwball-comedy manner that often is grating. However, in the second half, Hitchcock slows the tempo of Grant’s performance, thus revealing Johnnie’s sinister undertones. Johnnie emerges as a seductive and sociopathic menace not unlike Uncle Charlie in Shadow of a Doubt or Bruno in Strangers on a Train. If Grant (and the studios) had been more daring, he could have played the Joseph Cotten and Robert Walker roles.

Suspicion should be viewed as a blueprint for a more rewarding collaboration: Notorious. Apart from being one of Hitchcock’s masterpieces, the film represents Grant’s strongest dramatic performance. His portrayal of Devlin remains so emotionally cold that it leaves no room for his traditional humor. Ben Hecht’s detailed screenplay also includes a self-revelatory comment by Devlin: “I’ve always been scared of women. I’ll get over it.”

In Hitchcock’s cruelest and most disturbing romance, Devlin emerges as an unsympathetic sadist. The counterspy seduces and manipulates Alicia (Ingrid Bergman), an alcoholic nymphomaniac, into helping the U.S. government obtain secrets by marrying the Nazi spy Sebastian (Claude Rains), who actually loves her more than Devlin does.

With the casting of Bergman and Rains, the love triangle in Notorious is similar to Casablanca. However, in Hitchcock’s world, there is no stirring display of patriotism or sentimentality. One feels sorrow for Sebastian when Devlin cruelly locks the car door and drives off with Alicia, leaving Sebastian to face certain death at the hands of his fellow Nazis. Ironically, the humanity of Sebastian makes him a far more sympathetic character than Devlin, who cares little about people, except for the secrets and sexual gratification he can extract from them.

Though Devlin saves Alicia from a poisonous fate, it doesn’t redeem his mean-spirited treatment of her. Even when Devlin tells Alicia that he was “a fat-headed guy full of pain,” it isn’t entirely convincing. Herein lies the brilliance of Hitchcock, who finally strips Grant of his protective charm.

Notorious should have been the start of a new dramatic phase in Grant’s career. Instead, he played it safe by starring in a succession of comedies from 1947 to 1953. With the exception of his intelligent performances in Richard Brooks’ Crisis and Joseph Mankiewicz’s People Will Talk, Grant avoided serious roles during that period. Much was lost in the process.

Hitchcock’s fortunes waned after the release of Notorious. The filmmaker would not have another major critical and commercial success until Strangers on a Train in 1951. By the time Hitchcock re-established his cinematic artistry, Grant had retired in 1953 after a string of box-office disappointments.

The retirement lasted two years. In the end, it was Hitchcock who convinced Cary Grant to return to filmmaking. The master of suspense gave the actor a script he couldn’t refuse . . . and some Hitchcockian words of encouragement: “There isn’t a thing wrong with you, old man, that a first-rate screenplay won’t cure.  You’d be perfectly splendid in the part. One last thing: Grace Kelly has agreed to play the girl and a good part of the picture will be shot on the Riviera.”

Grant signed on the dotted line and began work on To Catch a Thief (only his second Technicolor feature — the first being 1946′s Night and Day). Hitchcock considered the film a “lightweight story,” yet it remains an important work from one of his most prolific periods. The director’s renewed energy is evident in the vividness of Robert Burks’ cinematography and imaginative use of the newly developed VistaVision process.  Though not terribly suspenseful, To Catch a Thief ranks among Hitchcock’s most stylish and elegant achievements.

Of course, the film’s soufflé-like quality would have collapsed without Grant’s flawless performance. As retired cat burglar John Robie, Grant revitalizes his screen presence. He is not playing Robie so much as he is playing Cary Grant — a suave, debonair man who looks good and knows it. This relaxed self-confidence is exactly what Hitchcock wanted.

The Hitchcock-Grant films utilize sex as a form of seduction and manipulation. To Catch a Thief is notable for the bold eroticism of Francie (played by a stunningly cool Grace Kelly) and her aggressive carnal desire for Robie. The offbeat nature of their romance adds to the lasciviousness, especially when Francie suddenly kisses Robie in the hotel corridor — her libido churning away. As in Notorious, Hitchcock effectively films Grant from behind in this brief encounter, making him the center of attention by focusing on the magnetism the viewer cannot see. When Grant turns to the camera, the look of bemused satisfaction on his face remains priceless.

Hitchcock biographer Donald Spoto credited To Catch a Thief for its “classic Freudian notion of sex as larcenous” — a theme the director further developed in Psycho and Marnie. Most apparent is Hitchcock’s equation of jewelry to women’s bosoms, especially during Robie’s foray at the gambling tables and the now-classic “fireworks” sequence. When Francie invites Robie to her hotel suite, he knows what she is after and vice versa: “Look — hold them. Diamonds! The only thing in the world you can’t resist.”

For Hitchcock, the fireworks scene in To Catch a Thief represented the cinematic equivalent of sexual rapture. “Sex on the screen should be suspenseful,” he told Truffaut. “If sex is too blatant or obvious, there’s no suspense. Sex should not be advertised.”

Hitchcock’s fascination with the paradox between the inner fire and cool surface reached its apex in North by Northwest — his last collaboration with Grant.  In this legendary cross-country chase-thriller, both men were at their artistic zenith.

Screenwriter Ernest Lehman crafted a story that he called “the Hitchcock picture to end all Hitchcock pictures” — incorporating various ideas and set pieces that Hitchcock never could fit into his previous films. Most important, the role of complacent ad executive Roger Thornhill was written specifically for Grant, who could combine fear and desperation with a light comedic touch. Without Grant, it’s unlikely Hitchcock would have made North by Northwest.

Once again, Hitchcock uses Grant’s charm in a dark and manipulative fashion. However, it is Thornhill who falls victim to a series of unpredictable, nasty surprises. North by Northwest emerges as Hitchcock’s belated revenge on the Grant persona.

Interestingly, the film has been described as an unofficial sequel to Notorious with its psychosexual relationships and espionage sacrifices. Unlike previous Hitchcock-Grant efforts, North by Northwest evolves into a travelogue of the absurd. Thornhill is mistaken for a man who doesn’t exist and spends most of the film trying to track down the elusive “George Kaplan.”

Nowhere is this surrealism more evident than during the Mount Rushmore climax, with its mind-boggling urgency leading to Thornhill’s moment of truth. The final seconds not only are a moral redemption for Thornhill in his rescue of double agent Eve Kendall (Eva Marie Saint) but also one of sexual fulfillment — emphasized in the suggestive closing shot. It is fitting that the final Hitchcock-Grant thriller ends happily.

With so much written about the Mount Rushmore and crop-duster chases, the auction sequence tends to get lost in the shuffle. This beautifully written set piece is tailor-made for Grant’s unique talents.

The auction scene works on several levels. First, there are elements of sexual blackmail and enslavement — another parallel to Notorious — emphasized in the tension between Thornhill, Eve and Van Damm (James Mason), with Eve emerging as the object of value. Also evident is the surprisingly mature love-hate relationship between Thornhill and Eve, who plays conflicting roles throughout the film. (Saint deserves recognition as Grant’s finest Hitchcockian costar — sophisticated and sensual, yet ice-cold and dangerous. Unlike Francie in To Catch a Thief, Eve is more subtle in her sexual desire.)

After Eve and Van Damm depart from the auction, Thornhill again must use his ingenuity and performing skills to extricate himself from yet another predicament (not unlike Robert Donat’s improvised political speech in The 39 Steps). When Thornhill begins his outlandish bidding, the scene turns into a rare display of “screwball suspense” — nonconformist humor with a menacing undercurrent that captures the essence of Hitchcock’s tongue-in-cheek thriller.

In retrospect, it was easy to see why North by Northwest became Cary Grant’s last film with Hitchcock. At 55, Grant managed to look younger than James Stewart in Vertigo, but knew his days as a leading man were coming to an end. By the time he made Stanley Donen’s pseudo-Hitchcock thriller Charade in 1963, Grant was unable to disguise his age — nearing 60, he looked too old as a romantic hero. When Grant turned down the lead in Hitchcock’s Torn Curtain, it was because he no longer could play “Cary Grant.” Unwilling to make the transition to character roles, Grant retired for good in 1966.

Though directors such as Leo McCarey and Howard Hawks helped unearth the full range of Grant’s comic talents, it was Hitchcock who discovered the darkness that lurked within the actor’s seemingly carefree and debonair persona. Only with Hitchcock could Grant afford to take risks. Hitchcock, in turn, transformed the elegant film star into a complex screen legend. From a director-actor standpoint, they were a perfect match.