William Friedkin had already dealt with homosexuality at the birthday party adaptation of The Boys in the Band and had enjoyed enormous commercial and critical success with The French Connection and The Exorcist.
On the DVD "making of" supplement, Jurgensen, who served as a consultant on Cruising (among other films, including Friedkin's The French Connection), testifies to its accuracy of detail, going so far as to vouch for the historical veracity of its most improbable and infamous flourish: the bizarre entrance of a giant black police officer into a tense interrogation room where, wearing nothing but a cowboy hat and jockstrap, he bitch-slaps a cowering suspect.