Catch the 1989 Christmas classic “National Lampoon’s Christmas Vacation” and the 1985 board game-inspired “Clue” on the big screen as the December Double Feature in the Clark County Library’s Paul C. Blau Theater. The Flamingo Film Club is set to meet from 6 to 7 p.m. Dec. 14 to discuss “Clue” and other whodunit films and what makes them cult classics. So this is a great opportunity to watch the film before the discussion.