The Ritz (1976)
To escape from a mobster, businessman Gaetano Proclo orders a cab driver to take him to a place where he can't be found. Unfortunately for Gaetano, the place turns out to be a gay bathhouse.
Directed by: Richard Lester
Starring: Jack Weston, Rita Moreno, Jerry Stiller, Kaye Ballard, F. Murray Abraham, Paul B. Price
Links: IMDb, Movie posters, Movie stills