How many movies have Andy Strahorn and Cooper Donaldson collaborated on?

They have worked on 4 movies together! Their first movie together was The 41–Year–Old Virgin Who Knocked Up Sarah Marshall and Felt Superbad About It (2010) while their highest rated movie together was The Butterfly Room (2012). They have not worked together since The Butterfly Room (2012). They are most known for their horror films together.