"Swing High, Swing Low" (1937) deserves to be on Mitchell Leisen's page. It's a wonderful oddity with high jinx, style, some ingenious comedic patter; then in the last two reels it goes serious, but in a good way. Not the usual script formula for romantic comedy. Fred MacMurray and Carole Lombard's best partnership, out of four pictures together.
"Easy Living" ist one of the funniest screwball comedies of the 30ies; It's really enjoyable; Before that movie I don't know Jean Arthur, but she is a great actress with a superb timing.