When Mike Birbiglia asked This American Life‘s Ira Glass to produce his first feature, Sleepwalk with Me, premiering here at Sundance, Glass thought it sounded like it might be fun. “I’d read a couple of scripts, look at a couple of rough cuts,” he remembers thinking.

Glass’s presumption was far from the truth… very far. In this short interview, shot before Sundance while Glass was in the sound studio with Birbiglia, he ponders — hilariously — the job of the producer.