Along with his brother Jerry and friend Jim Abrahams David Zucker has directed some of the funniest movies of all time! The Naked Gun films, Hot Shots, Top Secret and many others. But their first big hit was Airplane! In the new book “Surely You Can’t Be Serious” ZAZ, as they’re called collectively, describe their journey from pranksters from Wisconsin to Hollywood film makers. Mike Hsu talks to him about casting for Airplane! and the the number one rule they told the actors follow.