How many movies have Greg Powell and John Snowden collaborated on?

They have worked on 3 movies together! Their first movie together was The Bourne Ultimatum (2007) while their highest rated movie together was Harry Potter and the Deathly Hallows: Part 1 (2010). They have not worked together since Pirates of the Caribbean: On Stranger Tides (2011). They are most known for their fantasy films together.