How many movies have Dave Goelz and Diana Birkenfield collaborated on?

They have worked on 4 movies together! Their first movie together was The Fantastic Miss Piggy Show (1982) and was their highest rated movie together. They have not worked together since The Muppets at Walt Disney World (1990). They are most known for their music films together.

Role
The Great Gonzo / Dr. Bunsen Honeydew / Beauregard / Zoot (voice)
Crew
Producer
Role
Rugby the Tiger / Ditz (voice)
Crew
Executive Producer