How many movies have Bart Flaherty and Thomas J. Garrigan collaborated on?

They have worked on 3 movies together! Their first movie together was The Dark Half (1993) while their highest rated movie together was Zack and Miri Make a Porno (2008). They have not worked together since Zack and Miri Make a Porno (2008). They are most known for their horror films together.