From the trailers one can tell that Jon of Don Jon is not a fan of happy ending rom-coms. So you know not to expect one in the directorial debut from Joseph Gordon-Levitt . Don Jon tells the story of Jon Martello, a cocky boy from Jersey who is a bonafide porn addict that favors putting up a facade rather than dealing with the now. The character of Jon seems like he would be friends with the cast of Jersey Shore , but instead of GTL, for Jon it's GPC: gym, porn, church. Jon goes through life like a daily checklist as if he is programmed, which is shown through Gordon-Levitt's quick cut editing; even Jon's voice over narration is in control. Anytime something real (an actual woman in his bed, a comment from someone that he is not expecting, etc) is happening to Jon, that thought is juxtaposed with images of porn scenes which are going through Jon's mind. This doesn't change when Jon thinks he has met his match in Barbara Sugarman ( Scarlett Johansson ), a "1...