Illusion(1929)

A vaudeville magician team is broken up when Carlee, an ex--circus performer, becomes infatuated with socialite Hilda Schmittlap. Meanwhile his vaudeville partner, Claire, has chosen a new partner, but her "heart isn't in it" because she is disconsolate over Carlee. Curious about her new act, Carlee attends a performance and sees Claire nearly killed when she fails to substitute fake bullets for real ones. Rushing to her aid, Carlee realizes how much Claire means to him.