Scripts are great, but a surprising number of the best moments in movie history were improvised. John Hughes' scripts, however, didn't particularly require that much in the way of improvisation, with ...

Add Yahoo as a preferred source to see more of our stories on Google. Chevy Chase had a little help from his co-stars during filming for the 1989 movie Christmas Vacation. The actor recently revealed ...

Why 'National Lampoon's Christmas Vacation' marks the high point of Chevy Chase and John Hughes' collaboration, the purest distillation of Clark Griswold's haplessness. By Kevin Doughten Picking a ...