It’s usually not difficult to tell whether Amy Schumer is in on the joke. On her Comedy Central sketch show “Inside Amy Schumer,” she’s clearly in charge of the spoof despite portraying characters who, more often than not, are guilty of the behaviors her writing skewers. She’s admitted she likes playing dumb and obnoxious, but with a subversive punchline payoff. Unfortunately, in Schumer’s first feature film, shanghaied by producer/director Judd Apatow (The 40-Year-Old Virgin, Knocked Up), her part in the parody is less incontrovertible. Read the full review here.