The Lady Eve is a 1941 American screwball comedy film written and directed by Preston Sturges and starring Barbara Stanwyck and Henry Fonda. The film is based on a story by Monckton Hoffe about a mismatched couple who meet on board an ocean liner. In 1994, The Lady Eve, which is included on many all-time "Top 100" lists, was selected for preservation in the United States National Film Registry by the Library of Congress as being "culturally, historically, or aesthetically significant".

Screwball comedy is a film subgenre of the romantic comedy genre that became popular during the Great Depression, beginning in the early 1930s and thriving until the early 1950s, that satirizes the traditional love story. It has secondary characteristics similar to film noir, distinguished by a female character who dominates the relationship with the male central character, whose masculinity is challenged, and the two engage in a humorous battle of the sexes.