The Flesh and Blood Show (1972)

The Flesh and Blood Show (1972) is a horror, sexploitation film. A creepy, abandoned theater on the English coast is the setting for a play rehearsal with a group of actors and a director. One by one, the thespian are picked off and killed by an unknown maniac. Frightened for their lives, the remaining actors dig up the mysterious theater's history to get to the bottom of what's going on before they all end up bloody corpses.

Stewart Bevan, who plays Harry, shows his dick and balls during a black and white flashback while naked with a woman in a dressing room. We getting another look at his dick after his dead body is dragged away by a murderer. There's also a scene whereTristan Rogers, who plays Tony, gets out of bed shirtless and puts his jeans.