A clip from the film Chasing Rainbows.
That's some really crappy acting and direction, but the talkies were new media and they were still trying to figure it out.
Lifted from Wikipedia:
Chasing Rainbows is a 1930 American Pre-Code romantic musical film directed by Charles Reisner, starring Bessie Love and Charles King, and released by Metro-Goldwyn-Mayer. The supporting cast features Jack Benny, Marie Dressler, and Polly Moran. This was Jack Benny's first fiction film role.
The movie introduced the song "Happy Days Are Here Again". [FDR's 1932 presidential campaign song. I wonder if he had permission from the copyright holder.]
Carlie and Terry constitute a vaudeville team in a traveling musical show; also in the company are Eddie, the stage manager; Bonnie, a comedienne; and Polly, the wardrobe mistress. Terry's habit of constantly falling in love with the leading lady causes him to marry Daphne, a two-timing songstress. When he finds her with another man, Eddie threatens to kill himself, but his little partner reassures him that "Happy Days Are Here Again," and the show goes on.