The Great Gabbo (1929)
For the ventriloquist Gabbo his wooden dummy Otto is the only means of expression. When he starts relying more and more on Otto, he starts going mad.
Directed by: James Cruze
Starring: Erich von Stroheim, Betty Compson, Donald Douglas, Marjorie Kane, Earl Burtnett, George Grandee
Links: IMDb, Movie posters, Movie stills