This is an unintentional changing of the guard movie. Made in 1980, it stars Chevy Chase, the first member of Saturday Night Live to quit the show early to pursue a movie career, and features Bill Murray, his SNL replacement, who basically steals the movie out from under him. Chase indeed became a movie star for a few years, embodying the sardonic, self-satisfied smug humor of a new generation – but Murray, in time, proved the more durable movie star and much better actor. But here they ar