A farm girl in premed studies (Julia Stiles) falls in love with the prince of Denmark (Luke Mably), who’s hiding out at her university after a long spell of goofing off, shortly before he’s expected to assume the throne. I dreaded the worst after seeing the trailer, but Martha Coolidge directs as if the characters were believable human beingsat least until the end, when Hollywood and fairy-tale conventions have to triumph over humanity and common sense. James Fox and Miranda Richardson play the prince’s parents. PG, 111 min. (JR)