(PG) Michael Keaton stars as Jack Frost, the lead singer of a band that keeps scrambling to make the big-time. His wife Gabby (Kelly Preston) and his son Charlie (Joseph Cross) complain because he's on the road so much. Jack, who has missed yet another important moment in his son's life, gives the boy a "magic harmonica," telling his son that, whenever the harmonica is played, Jack will hear it. Naturally, Jack is killed on Christmas Day in an effort to be with his family. A year later, Charlie plays the harmonica, and Jack suddenly is "alive" again as the snowman in Charlie's yard.snowball fights, sled rides and hockey tips with "dad." (1998)