

A film projectionist longs to be a detective, and puts his meager skills to work when he is framed by a rival for stealing his girlfriend's father's pocketwatch.
Stunts
The motorcycle sequence — no cuts, pure insanity
Editing
Screen-within-screen transitions that invented meta-cinema
Direction
Keaton's poker face against maximum chaos

Director
Buster Keaton
Trivia, insights & behind the scenes
Keaton performed the famous motorcycle stunt with a broken neck from a previous scene — he didn't know until years later when X-rayed.
The film-within-film structure directly influenced everything from Purple Rose of Cairo to Last Action Hero to Everything Everywhere All at Once.