Alfred Hitchcock isn't the only director who appeared in his own movies - François Truffaut, Orson Welles, Martin Scorsese and M Night Shyamalan are among many others who have done the same - but he is by far the one who has done it most frequently. He appeared, to the best of film historians' knowledge, in 39 of his 53 films.

Before the blonde, there was Bergman. In the second half of the 1940s, Hitchcock cast Ingrid Bergman three times, and on each occasion asked her to incarnate a different kind of leading lady. In the film noir Spellbound (1945) she was a psychoanalyst defrosted by Gregory Peck, and she played the loyal sister of a convict in 19^th-century Australia in Hitchcock's first colour film, the costumed period piece Under Capricorn (1949).

The epithet "mellifluous" might have been invented to describe Herbert Marshall’s voice. It was lucky that sound came along at the time Marshall, after a prestigious stage career, entered films when he was almost 40. We don’t hear those beautiful tones until some time into Murder!

In Vertigo Kim Novak plays two women who are really just one. First Madeleine, a supernatural siren, a woman apparently possessed by her tragedienne great-grandmother Carlotta Valdes. However, it’s a performance within a performance and she’s merely a facsimile, a devastating creation played by an agent in a murderous plot. The imposter manipulates Scottie (James Stewart) into loving her only so that he may witness her apparent death. Then there’s Judy, the real woman behind the performance who is persuaded back into the part when Scottie can’t let go of Madeleine’s ghost.

The recent speculation as to whether Michael Phelps can be regarded as "the greatest Olympian" leads one to ponder the very notion of judging "greatness" hierarchically. If the only criterion for claiming Phelps as the "greatest" is based on his winning the most medals then it would be equivalent to judging the best film ever made on the amount of Oscars it had won. Step up Ben Hur, Titanic and The Lord of the Rings, each of which gained 11 Academy Awards.

The final collaboration between Grant and Hitch also happens to be some of the helmer’s most deft, joyously irreverent work, light of touch and bereft of sentiment. Grant stars as a slick Mad Ave exec who’s mistaken for a spy and pursued across the US by a cabal of shadowy agents, a state of affairs that he takes impressively in his debonair stride.

Hitchcock’s penultimate film was the grubby, squirm-inducing Frenzy, and Barry Foster's depiction of the grim killer Robert Rusk is central to the disquieting aura it casts. The film’s production was problematic enough, having been cut by the BBFC before release. It also had casting problems – Michael Caine turned down the lead role. Hitchcock dismissed composer Henry Mancini from soundtrack duties after having commissioned him. Hitchcock’s first British production for two decades wasn’t an easy ride for the director or audiences.

It’s always a thrill watching The 39 Steps’ Richard Hannay (Robert Donat) doing daredevil feats on the Flying Scotsman as it speeds across the Forth Bridge, kissing a Scottish crofter’s jealously guarded wife, and bringing down the house with an inane extemporized speech at a constituency meeting.

The last time Jack Cardiff went to Cannes, nobody recognised him; wearing his trademark trilby, he'd tell curious autograph hunters he used to be a stand-in for Frank Sinatra. In fact Cardiff's claim to fame was somewhat greater: his was the eye behind some of the most achingly beautiful images in all of cinema. Handsome, charismatic and sharp as a tack, with a bottomless fund of funny and revealing anecdotes, he's also a dream subject for a documentarian. Naturally no television company was prepared to fund a film about him.