For a film heavily dependent on special effects, the best effect going in this 1994 comedy is the ever-expressive star, Jim Carrey, playing a shy bank teller who stumbles across an ancient mask that turns him into a green hepcat with extraordinary powers. Cameron Diaz plays the love interest, but the real purpose of the movie is to bring cartoonish energy and effects into a live-action production. Toward that end, director Charles Russell does the job, but the gimmick wears out quickly for those easily bored by this sort of pseudo-animation. Lots of kids adore the film, though, and why not? The hero gets to be a whirlwind of mischief and still get the girl. --Tom Keogh