“As an actor, how important is it to know your lines?” That’s the first question Josh Gad asked his TV dad Bill Pullman in a new behind-the-scenes clip from the duo’s new NBC comedy 1600 Penn. Pullman was game as Gad asked him to re-enact scenes from his classic movies, including Spaceballs and Independ-- we mean, Lake Placid. Check out Pullman’s hilarious response to Gad’s interrogation (and fantastic impression skills) below!