How many movies have Jim Mallon and Michael J. Nelson collaborated on?

They have worked on 3 movies together! Their first movie together was Mystery Science Theater 3000: Santa Claus Conquers the Martians (1991) while their highest rated movie together was Mystery Science Theater 3000: The Movie (1996). They have not worked together since Mystery Science Theater 3000: The Movie (1996). They are most known for their science fiction films together.