What 1975 musical comedy features a transgressive couple and a Frankenstein-like creature?

The 1975 musical comedy featuring a transgressive couple and a Frankenstein-like creature is The Rocky Horror Picture Show.

Directed by Jim Sharman, the film adapts Richard O’Brien’s stage musical The Rocky Horror Show. Newly engaged Brad and Janet become stranded during a storm and seek help at a strange castle, where they meet Dr. Frank-N-Furter, an eccentric scientist who unveils Rocky, an artificially created muscleman modeled on the Frankenstein tradition.

The movie parodies and celebrates science-fiction and horror B movies from the 1930s through the 1960s. Tim Curry stars as Frank-N-Furter, with Susan Sarandon as Janet and Barry Bostwick as Brad. Songs such as “The Time Warp” helped make the film a lasting musical phenomenon.

Its cult status grew through interactive midnight screenings, where audiences dress up, shout scripted responses, and use props. It is sometimes confused with The Rocky Horror Show, the original stage production from 1973; the film adaptation is The Rocky Horror Picture Show.