I remember seeing the opening of this film as a child. It was on HBO or Cinemax very late at night in the early 1990s. A child (son) of a father who works in a mine goes to visit said father, but gets eaten by zombies or ghouls or something. I just remember being terrified when one of the zombies walks by the camera holding the kids bloody bone in his hand. I had to turn it off. I can not for the life of me find this movie.