Mark Wahlberg in Boogie Nights

In the movie Boogie Nights, Mark Wahlberg plays the lovable role of Dirk Diggler, a young man working in a nightclub, which eventually leads him to getting roles in adult films. One of the final scenes in the movie shows Wahlberg showing off his rather large private part, but what many don’t know – and might get upset about – is that he was actually wearing a prosthetic over his real private part.