Sir Alfred Joseph Hitchcock, KBE (1899-1980), was a British film director known as 'the Master of Suspense' for his prolific output of popular, yet critically well-received, thrillers. He made more than fifty feature-length films, including Shadow of a Doubt, The 39 Steps, Rebecca, Dial M for Murder, Rear Window, Vertigo, North by Northwest, Psycho, The Birds, Topaz, and Frenzy.
Several of his most famous movies, including The 39 Steps and North by Northwest, are based on mistaken identity. He said his inspiration for doing suspenseful horror movies was being scared by "boo" by his mother when he was an infant.
He frequently made brief cameo appearances in each of his films, usually in a humorous context.
- Alfred Hitchcock at the Internet Movie Database