In the movie "The Ringer", Zen Gesner played David.  David was engaged to Special Olympics worker Lynn, but he wasn't that faithful, and was eventually found out by some of the guys in the Olympics when they snuck out to go to a movie.  David brought them back to their boarding house, but lied about what happened and Lynn broke off the engagement.  It was pretty funny to see super nice "Sinbad" playing a bad guy in this movie.