National Lampoon’s Vacation is a 1983 comedy film starring Chevy Chase as Clark Griswold, a determined father leading his family on a cross-country road trip to the fictional Walley World. Directed by Harold Ramis and written by John Hughes, the movie blends outrageous mishaps, sharp humor, and family chaos. Vacation became a comedy classic and launched a beloved film series about the Griswold family’s misadventures.