An excruciatingly heartfelt performance from Patton Oswalt carries this high-concept indie picture from writer-director James Morosini. It’s a film that genuinely does take the comedy of embarrassment to a new level. Morosini says that it’s based on a real incident in his own life; I can believe it. You couldn’t make it up. There is a stranger-than-fiction authenticity to the whole horrifying mess, in which Morosini cleverly uses real home-movie footage of his own childhood. The final 15 minutes have to be watched through your fingers.