How many movies have Gavin Harrison and Steven Wilson acted in together?

They have worked on 8 movies together! Their first movie together was Porcupine Tree: Rockpalast (2005) while their highest rated movie together was Porcupine Tree: Arriving Somewhere... (2006). They have not worked together since Porcupine Tree: Closure / Continuation. Live. Amsterdam 07-11-22 (2023). They are most known for their music films together.