How many movies have Johnny Lee Middleton and Jon Oliva collaborated on?

They have worked on 4 movies together! Their first movie together was Savatage: Anaheim Devastation 1990 (1990) while their highest rated movie together was Trans-Siberian Orchestra: The Ghosts of Christmas Eve (1999). They have not worked together since Savatage: The Video Collection (2013). They are most known for their music films together.