Vegas Vacation is a 1997 American comedy film directed by Stephen Kessler in his feature directorial debut. It is the fourth installment in National Lampoon’s Vacation film series, and was written by Elisa Bell, based on a story by Bell and Bob Ducsay. The film stars Chevy Chase, Beverly D'Angelo, Randy Quaid, Wayne Newton, Ethan Embry, and Wallace Shawn. It tells the story of Clark Griswold taking his family to Las Vegas to renew his vows to Ellen as the series' usual hilarity occurs. The film opened at #4 at the box office and grossed over $36.4 million domestically. Vegas Vacation is the first theatrical Vacation film not to carry the National Lampoon label or a screenwriting credit from John Hughes. Also, this is the only National Lampoon film to be released in the 1990s and the final film released before National Lampoon magazine folded. this was also the last Vacation movie to be released until New Line Cinema, a production company of Warner Bros, produced a reboot that was released 18 years later in 2015.

National Lampoon was an American humor magazine that ran from 1970 to 1998. The magazine started out as a spinoff from The Harvard Lampoon.