How many movies have Amir Valinia and Caleb Michaelson collaborated on?

They have worked on 3 movies together! Their first movie together was Lockjaw: Rise of the Kulev Serpent (2008) while their highest rated movie together was Xtinction: Predator X (2010). They have not worked together since Xtinction: Predator X (2010). They are most known for their science fiction films together.