Gentleman's Agreement

Gentleman's Agreement is a 1947 American drama film based on Laura Z. Hobson's best-selling 1947 novel of the same title, directed by Elia Kazan. The film is about a journalist who pretends to be Jewish to research an exposé on the widespread antisemitism in New York City and the affluent communities of New Canaan and Darien, Connecticut. It was nominated for eight Academy Awards and won three: Best Picture, Best Supporting Actress, and Best Director.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster by "Copyright 1947 - By Twentieth Century–Fox Film Corp. " (Public domain).