As the ultimate middle-class comedy director, Paul Mazursky had a grand time in the late 60s and early 70s toying with the titillations offered by the counterculture without ever really succumbing to them, and this movie, about mate swapping, was one of his most successful (at the box office) ambivalently pitched forays in that direction. The results are pretty obnoxious and only intermittently funny, but certainly characteristic. Mazursky and Larry Tucker scripted, and the foursome are played by Natalie Wood, Robert Culp, Elliott Gould, and Dyan Cannon. (JR)