How many movies have Nina G. Bargiel and Richard Steven Horvitz collaborated on?

They have worked on 1 movie together! Their first movie together was Billy & Mandy's Big Boogey Adventure (2007) and was their highest rated movie together. They have not worked together since Billy & Mandy's Big Boogey Adventure (2007).

Crew
Writer
Role
Billy / Billybot / Harold / Pale Ghoulish Juror / Chippy the Squirrel (voice) (as Richard Horvitz)