It is, without a doubt, the funniest family Christmas film of all time. National Lampoon's Christmas Vacation is a modern classic that's good family fun. Writer John Hughes brilliantly captures the American family, and creates fun, authentic characters that are relatable. Chevy Chase leads an all-star ensemble cast that includes Beverly D'Angelo, Julia Louis-Dreyfus, and Randy Quaid; all of whom give great performances. It's a near perfect holiday film with a positive message and a ton of laughs. National Lampoon's Christmas Vacation is a wonderful film that's sure to brighten up the holidays.