How many movies have Ivan Reitman and Ray Glanzmann collaborated on?

They have worked on 2 movies together! Their first movie together was Ghostbusters II (1989) and was their highest rated movie together. They have not worked together since Kindergarten Cop (1990).

Crew
Director
Role
Detective #2
Crew
Producer
Role
Man Walking Outside Firehouse / Slimer (voice) (uncredited)