How many movies have Lemmy and Michael Herz collaborated on?

They have worked on 4 movies together! Their first movie together was Tromeo & Juliet (1996) while their highest rated movie together was Return to... Return to Nuke 'Em High aka Vol. 2 (2017). They have not worked together since Return to... Return to Nuke 'Em High aka Vol. 2 (2017). They are most known for their horror films together.