You sure are, Mark Wahlberg. And you've got one ginormous penis. Or, at least, your character in Boogie Nights does. Paul Thomas Anderson decided to finish his sort of John Holmes porn-based biopic in a hugely memorable fashion - basically by having Wahlberg's character, Dirk Diggler, reach into his trousers and take out his weapon. Sure, it's prosthetic, and sure, we spent a lot of time pausing this moment to try and work that out.