How many movies have Andi Deris and Sascha Gerstner acted in together?

They have worked on 13 movies together! Their first movie together was Helloween: [2005] Krakow, Poland (2005) while their highest rated movie together was Helloween: Pumpkins United: Live At Wacken 2018 (2018). They are most known for their music films together.