How many movies have Marilyn Sadler and Roger Bollen collaborated on?

They have worked on 4 movies together! Their first movie together was P.J. Funnybunny: A Very Cool Easter (1997) while their highest rated movie together was Zenon: Girl of the 21st Century (1999). They have not worked together since Zenon: Z3 (2004). They are most known for their science fiction films together.