Man on a Swing is a 1974 American thriller film directed by Frank Perry and written by David Zelag Goodman. The film stars Cliff Robertson, Joel Grey, Dorothy Tristan, Elizabeth Wilson and George Voskovec and was released on February 27, 1974 by Paramount Pictures.The film is loosely drawn from a true-life murder investigation and based on the non-fiction book The Girl on the Volkswagen Floor (1971) by journalist William Arthur Clark.