Oh Carol! The 1969 film Bob & Carol & Ted & Alice addressed issues of honesty and fidelity in marriage, and ultimately depicted an attempt at wife-swapping between a fairly liberated couple and their conservative friends.
When you realize that Natalie Wood, vixen in a paisley bikini, is in the mix, the stakes seem suddenly a bit higher. Wood played Carol, who had resolved to be totally honest with her husband Bob (Robert Culp) —even about the extramarital affairs they were having. Ted (Elliott Gould) and Alice (Dyan Cannon) weren’t so comfortable with the idea, but in one of those movie-world intellectual conversations that gets real,
Natalie Wood, 1969. : r/OldSchoolCool