Jack Frost is a figure believed to have originated in Viking folklore, an elfish creature who personifies crisp, cold, winter weather. He is said to leave those frosty crystal patterns on leaves and windows on cold mornings. It is also thought that English derived the name Jack Frost from the Norse character names, Jokul ("icicle") and Frosti ("frost").
Jack Frost (1997), a horror movie directed by Michael Cooney.
Jack Frost (1998), a movie directed by Troy Miller, stars Michael Keaton and features Henry Rollins.
Jack Frost is the English version of the 1966 Russian film Father Frost, which was the subject of an 8th-season episode of Mystery Science Theater 3000.
