How many movies have Mikael Åkerfeldt and Peter Lindgren acted in together?

They have worked on 3 movies together! Their first movie together was Opeth : Deliverance (2002) while their highest rated movie together was Opeth: Lamentations (2003). They have not worked together since Opeth: The Roundhouse Tapes (2008). They are most known for their music films together.