National Lampoon sequel in the works… A sequel to 1983 comedy National Lampoon’s Vacation is in the works. The film will centre on Rusty Griswold, the son of Clark Grisworld, who was the central character in the original Vacation series. Rusty has become a father and will take his own family on a road trip. Chevy Chase, who played Clark, and Beverly D’Angelo are expected to return for cameos in the new film. David Dobkin (Fred Claus, Wedding Crashers) will produce and is expected to direct the movie.