Trivia question – name Bill Murray’s first starring movie role. Do you remember “Meatballs” (1979)? A no-name director (Ivan Reitman) conceived a cheaply made summer camp comedy in which Murray is an endearingly subversive mentor to a bunch of hormone-addled “counselors in training.” It’s mostly childish humor interspersed with Murray’s improv-style riffs that were put to much better use by Reitman in “Ghostbusters.” There’s a sweetly developed subplot in which Murray befriends a lonely camper, which helps make it an actual movie and not just a string of gags. Ultimately, it rode Murray and his burgeoning stardom to box office success.