Indy director T. Arthur Cottam stiffly plays an obnoxiously quirky indie director of the same name who’s shooting a supposedly serious movie in a trailer park. It seems like large chunks of this dull 2006 “mockumentary” are supposed to be funny, but I’m not sure why—unless one automatically assumes political incorrectness (in this case the sexual exploitation of a mentally disabled character in the film within the film) automatically equals comedy. I also found the storytelling hard to follow, though maybe that’s just because I was never engaged. But Filthy Food (2006), the five-minute Cottam short playing with this feature—an audacious bit of comic porn featuring pieces of fruit—is a blast. 89 min.