Harold Ramis on Letterman Promoting Vacation

Jason English
Getty Images
Getty Images / Getty Images

Harold Ramis has died at the age of 69. Among his many credits, Ramis co-wrote and starred in Ghostbusters, and directed Caddyshack, National Lampoon's Vacation, and Groundhog Day.

Back in the summer of 1983, he went on Late Night with David Letterman to promote Vacation, where he talked about everything from his weakness for Chevy Chase—who made Ramis laugh so loud the director actually spoiled takes—to writing a new ending after audience screenings.  Here's the interview: