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The film "Bob & Carol & Ted & Alice" is a sex comedy that takes a lighthearted look at the sexual revolution of the 1960s. The film tells the story of two married couples who explore their changing attitudes towards sex and relationships, with an emphasis on open communication and sexual experimentation. It stars actors like Natalie Wood, Robert Culp, Dyan Cannon, and Elliott Gould, and was released in 1969.