Claudette Colbert bathing in asses' milk.

Claudette Colbert in "The Sign of the Cross", 1932. Set in the Roman Empire, the film used as a promotional hook, a light-hearted treatment of sexuality, which made it uncomfortable for the standards of his time. The scene of Claudette Colbert as the vicious Popea bathing in a tub in asses' milk -supposedly-, is famous by the brief display of a nipple of the actress.