The cast includes three Oscar-nominated stars: Warren Beatty, Leslie Caron, and Bessie Love.
You going out tonight?
Dr. Philip Brock: No.
Mrs. Brock: Can I have the Porsche?
Dr. Philip Brock: What do you want with the Porsche?
Mrs. Brock: I like it. It's a sex substitute.
Dr. Philip Brock: Mother!
Mrs. Brock: Oh, don't be such a Puritan.
Although the film is set in New York, it was largely shot in England, and most of the supporting actors are not only British but make no attempt to hide their accents.