One Eyed Monster

OneEyed Monster is a 2008 scifihorror comedy film directed by Adam Fields about the cast and crew of an adult film having an encounter with a different kind of monster while filming in the Northern California mountains.

After being dropped off by the school bus driver who leaves them behind, the group settles in their living quarters for the next few days to shoot. While Laura talks with Ron about his past career days, the guys, Lance, Rock and T.J. talk about T.J.s latest suckandsqueeze device for carnal pleasure that T.J. wants to market, while Angel and Wanda talk about their experiences on the porn sets. Radio reports begin to describe a strange light in the sky that has been hovering over the mountains for the last several hours as Jim gets down to directing, starting with the first scene with Ron and Veronica. During a break in filming, Jonah goes outside to get some more lights from the truck while Ron also goes out to relieve himself. Suddenly, a strange light hits Ron, who then collapses to the ground. Jonah helps him up and they go back inside to finish filming the scene. Ron is acting strangely and begins to exhibit strange behavior as he begins performing in the sex scene with Veronica, who begin screaming in pain as Jim tries to yell cut as Ron continues to have rough sex with her. The guys are forced to pull Ron off Veronica as he goes into convulsions and collapses. T.J., Jeff, and Jonah try to help Veronica, who begins hemorrhaging and loses consciousness. They guys look over to help Ron and see that he is dead. But they also notice that Rons legendary34inch penis is gone as well.In Angels room, she is rehearsing her upcoming scene, when the disembodied penis attacks her. Wanda walks in on this and runs out to inform Rock, Lance and Laura who run in only to find the disembodied member gone and Angel dead, with a large and gory hole in the back of her head. While everyone runs out to tell the others, Laura has an encounter the disembodied penis which attacks her. ........

Source: Wikipedia