Clark Griswold (Chevy Chase), the vacation-minded "National Lampoon's Vacation" dad, values his family time so much that quite a few of the Griswolds' extended family even makes an appearance in the ...

The cast of National Lampoon's Christmas Vacation wore placards with Chevy Chase's dialogue around their necks. Chase confirmed that he couldn't remember all of his lines in a pivotal meltdown ...

Beverly D’Angelo took matters into her own hands and made movie history. After “National Lampoon’s Vacation” (1983) and “National Lampoon’s European Vacation” (1985), the Griswolds returned to deliver ...

Clockwise from bottom left: Chevy Chase as Clark Griswold, Juliette Lewis as Audrey Griswold, Johnny Galecki as Rusty Griswold and Beverly D'Angelo as Ellen Griswold in 1989's 'National Lampoon's ...

Matthew Zwillick, of Malverne, has a bit of a reputation. The 47-year-old education administrator is known for his obsession with Christmas lights, much like Clark Griswold (Chevy Chase), the lead ...

Chase called the reunion a 'great time' Daniel Boczarski/Getty; Everett Collection This August has been a fun, old-fashioned family Christmas for Chevy Chase. The actor, who starred as Clark Griswold ...

Chevy Chase got a little lost while filming National Lampoon's Christmas Vacation. Quaid, who portrayed the imposing Cousin Eddie in the movie, said that Chase had trouble memorizing his dialogue ...