The rise and fall of influential '70s humor mag National Lampoon is highlighted in this zesty, multi-media history lesson. Dirty-minded Ivy League founders Douglas Kenney and Henry Beard are well profiled in archival interviews, and we get tons of footage of visionary talents such as Gilda Radner, John Belushi, Bill Murray and Chevy Chase contributing to stage shows, radio plays and movie spin-offs. But it's the words of the writers (Chris Miller, P.J. O'Roarke, Al Jean) and the celebrity fans (Billy Bob Thornton, Judd Apatow) that really establish NatLamp as the godfather of modern-day comedy.FULL REVIEW:Dynamic documentary traces the rise and fall of a comedy empire by Devin D. O’Leary (10/15/2015). 95 minutes Unrated.