National Lampoon's Christmas Vacation You Serious Clark is 100% authentic, officially licensed National Lampoon's Christmas Vacation apparel, that comes in t-shirt, v-neck, tank top, longsleeve, pullover hoodie, sweatshirt and zip hoodie styles! National Lampoon's Christmas Vacation is a 1989 comedy film. Based on the short story in National Lampoon magazine. The film follows the Griswolds and stars Chevy Chase, Beverly D'Angelo and Randy Quaid, with Juliette Lewis and Johnny Galecki. Lightweight, Classic fit, Double-needle sleeve and bottom hem