What is halloween movie jack?

"Jack" is not a specific Halloween movie. There are several Halloween movies that feature characters named Jack such as "The Nightmare Before Christmas," which is a Tim Burton movie about Jack Skellington, the Pumpkin King who wants to take over Christmas. Another example is "Halloween Town," a Disney Channel movie where one of the main characters is named Jack Skellington. However, without more information, it is difficult to provide specific details about a Halloween movie involving a character named Jack.