BBC Archive has a segment on the making of The Rocky Horror Picture Show (1975). “Film Night catches up with Richard O’Brien, Tim Curry and director Jim Sharman, who are hard at work on the movie adaptation of their cult stage musical, The Rocky Horror Show for 20th Century Studios. O’Brien discusses the process of writing the play and music, and his character Riff Raff, while Tim Curry reflects on how he has had to reign in the flamboyant transvestite scientist Dr. Frank-N-Furter to make him more cinematic and less theatrical.”

Watch here.