by Jenna GuillaumeBuzzFeed Contributor I often think it must feel so weird for actors to film sex scenes, but having to actually have sex for a movie role takes it to a whole other level. Here are some times mainstream actors opened up about filming real, unsimulated sex scenes for movies that weren't porn, but sure were something... 1. Before he hit it big, Robert Pattinson went method while shooting 2008's Little Ashes and actually masturbated on camera because he couldn't get the scene to work otherwise. "So I rubbed one out in front of the camera," he said.