"National Lampoon's Christmas Vacation" is a 1989 comedy film directed by Jeremiah S. Chechik. It follows the misadventures of the Griswold family, led by Clark Griswold, as they prepare for a festive Christmas celebration. Clark's plans for a perfect holiday are continually thwarted by a series of humorous mishaps and unexpected guests. The film features a memorable cast, including Beverly D'Angelo as Ellen Griswold and Randy Quaid as Cousin Eddie. Known for its slapstick humor and relatable family dynamics, "Christmas Vacation" has become a holiday classic, often enjoyed during the Christmas season for its comedic take on family gatherings and holiday stress.