Hollywood Stock Exchange has had an interesting for-pay virtual producer game for a long time now, based on the upcoming comedy about filmmaking, Shadow of the Vampire. Being a (paying) player gets your name on the DVD and earns you a portion of "certain box office bonuses" (which I take to mean a cash return based on how well the film does, but with unspecified details). If I knew about this 10 weeks ago, I might have played. (You can still sign up, with access to all previous weeks' activities, but the truly interactive portions are already over.)