National Lampoon's Christmas Vacation star Chevy Chase finally gets his lights to work. See Clark's face light up with the joy of 25,000 Italian twinkle lights. Watch the full movie on digital now. Clark Griswold, the well-intentioned, walking disaster who has dragged his family through the horrors of traveling in two previous National Lampoon Vacation films, has decided to stay home for the holidays--and the neighborhood will never be the same.​ SUBSCRIBE to Warner Bros. Entertainment: bit.ly/32v18jf Watch National Lampoon’s Christmas Vacation on digital: warnerbros.com/movies/national-lampoons-christmas-vacation Watch more National Lampoon’s Christmas Vacation clips from Warner Bros.: youtube.com/watch?v=207sc3h7Mg8&list=PL7Eup7JXScZzuB5AFC3xvopipIliGxPxr Happy Holidays from Warner Bros.! youtube.com/watch?v=azAaS-gbQws&list=PL7Eup7JXScZyVgsBFL-N4x1PV26DFfgvI Connect with Warner Bros. Entertainment: instagram.com/warnerbros...