Bill is the rich man, Joan is the poor girl, respectively played by Robert Young and Ruth Hussey (the female half of the tabloid journalist team in The Philadelphia Story). Joan is Bill's secretary, and he wants to marry her, but she comes from a tight-knit lower-income family and is afraid that if she marries Bill she will become distant from her family.  Bill decides to allay her fears and prove that he can become part of her family by moving in with them and sleeping on the davenport. Lew Ayres plays the opionated Cousin Henry, and Lana Turner has her biggest role to date as sister Helen.

Familiar face: Marie Blake (Grandmama Addams) as the neighbor.

Marie Blake on the right

Lana Turner

Rich Man, Poor Girl trailer on TCM