Double Wedding (1937)
In addition to their six Thin Man movies, William Powell and Myrna Loy made many other comedies and dramas together. In Double Wedding, Loy is Margit, the controlling head of her family who has specially chosen sad-sack cousin Waldo to marry younger sister Irene. When Irene seems to be more interested in madcap Charlie Lodge (Powell), a Bohemian artist who lives in a trailer, Loy moves in to break up the supposed romance.