How many movies have Rodger Bumpass and The Flaming Lips acted in together?

They have worked on 2 movies together! Their first movie together was The SpongeBob SquarePants Movie (2004) while their highest rated movie together was The SpongeBob Movie: Sponge on the Run (2020). They have not worked together since The SpongeBob Movie: Sponge on the Run (2020).