Until sometime in the 1960s, United Sates law and the Motion Picture Production code did not allow real sex in movies. After this period, a lot of boundaries were crossed in the film industry, and things slowly began to change. While most sex acts were and still are usually simulated for movies, occasionally, this isn’t always the case. So what, you might ask, is the difference when this happens in a standard motion picture, rather than in an adult film? It seems that experts agree that there is, in fact, a difference when the movie’s main intent is not to promote those sex scenes. But what about these real sex scenes? How often do they happen? Let’s take a look at some of the most popular movies, where the actors go a little bit beyond what happens to be written in the script.