How many movies have Alejandro González Iñárritu and Roland N. Thai collaborated on?

They have worked on 6 movies together! Their first movie together was Amores Perros (2000) while their highest rated movie together was Pan's Labyrinth (2006). They have not worked together since Birdman or (The Unexpected Virtue of Ignorance) (2014). They are most known for their drama films together.