Chevy Chase wasn't afraid to mess around on the set of 'National Lampoon's Vacation'—even with his 14-year-old co-star.

National Lampoon’s Vacation star Anthony Michael Hall has claimed he was mocked by his on-screen father, Chevy Chase, while ...

"I just remember the autograph you wrote me when we wrapped," Hall said. "He goes, 'To Anthony, you're a regular Robby Benson ...