Joss Whedon is the mastermind behind Buffy the Vampire Slayer, Angel, Firefly, Serenity, and Dr. Horrible’s Sing-a-long Blog (NPH’s finest work). His brand spanking new movie Cabin in the Woods debuted at SXSW yesterday at the Paramount. In an interview on Saturday he said it’s one of the most unbridled projects he’s ever had the pleasure of working on. But what did his fans really want to hear about?