National Lampoon's Christmas Vacation is a 1989 Christmas comedy film directed by Jeremiah S. Chechik. It is the third installment in National Lampoon's Vacation film series, and was written by John Hughes, based on his short story in National Lampoon magazine, "Christmas '59". The film stars Chevy Chase, Beverly D'Angelo and Randy Quaid, with Juliette Lewis and Johnny Galecki as the Griswold children Audrey and Rusty, respectively.