How many movies have Ramsey Mostoller and Thayer David collaborated on?

They have worked on 3 movies together! Their first movie together was Dead of Night: A Darkness at Blaisedon (1969) while their highest rated movie together was Dark Shadows: The Vampire Curse (2009). They have not worked together since Dark Shadows: The Vampire Curse (2009). They are most known for their horror films together.