The eating machine scene from Modern Times.
Directed and written by Charlie Chaplin.
This film is somewhere between the silent movies and talkies. Although Chaplin’s famous Little Tramp (Charlot) was silent, the film has several sound effects, besides music, like ambient sound and voices coming out of the radio. Even Chaplin sings a version of Je cherche après Titine, but with nonsense lyrics.
The evolution of sound in films means the end of The Little Tramp:
"How long will I continue presenting as Little Tramp? … I don’t know. The sound film progresses and if I had to represent a spoken character, I should modify the characteristics of Little Tramp.” Charlie Chaplin.