Add Yahoo as a preferred source to see more of our stories on Google. Chevy Chase looking a tree in National Lampoon's Christmas Vacation. After watching Chevy Chase find the biggest tree possible, ...

Taglines: For centuries, Europe has survived many foreign invasions. Now for the real test. Chevy Chase and his typical American family are on the way.

Without a doubt, watching "National Lampoon's Christmas Vacation" is a time-honored holiday tradition thanks to its endlessly memorable moments. You never stop laughing at Clark Griswold (Chevy Chase) ...