Girl, A Guy And A Gob, A (1941) - (Movie Clip) Why Doesn't He Assert Himself?

First scene, Edmond O'Brien is Stephen, the rich "guy" at the opera with snooty fiancée and mom (Marguerite Chapman, Nella Walker), not expecting to meet the "girl" (Lucille Ball) and family (George Cleveland, Kathleen Howard, Lloyd Corrigan), in RKO's A Girl, A Guy And A Gob (1941).