"Chevy Chase and Bill Murray - we thought those guys were funny. We love Bill Murray, but we didn't think they were right for Airplane! because it would step on the joke if there was a known comedian"

This quote by David Zucker is referring to the casting of the 1980 funny movie Airplane!. Chevy Chase and Bill Murray were 2 of the most popular comics of the time, and Zucker and his group believed they were amusing. Nevertheless, they decided versus casting them in the movie due to the fact that they felt that having a recognized comic in the movie would eliminate from the jokes. They still had a fantastic appreciation for Bill Murray, but they felt that it was best to cast lesser-known actors in order to keep the concentrate on the comedy. This choice ultimately settled, as Airplane! was a big success and is still considered among the best comedies of all time.