What is the oldest movie you have seen?

I loved that movie about the invisible rabbit! I'm thinking that is probably the oldest movie I have seen too. I saw it last year at my Mom's house too. lol she picked it up one night and we laughed our s off! If I can think of an older one I will edit. :) All Quiet on the Western Front from 1930. The book was better though. The Gs of Wrath (1940) was good too, but again the book was WAY better.