Arguably the most controversial gay-themed movie ever made, Cruising stars Al Pacino as a jittery cop who infiltrates New York’s S/M scene to investigate a series of unsettling gay murders. Director William Friedkin’s 1980 mystery, which inspired James Franco’s recent Interior. Leather Bar., remains one of cinema’s most unfairly-maligned thrillers. It’s again available on DVD after a lengthy moratorium. Watch the trailer below.