How many movies have John Viener and Joshua Pruett collaborated on?

They have worked on 3 movies together! Their first movie together was Phineas and Ferb: Mission Marvel (2013) while their highest rated movie together was Phineas and Ferb: Night of the Living Pharmacists (2014). They have not worked together since Phineas and Ferb The Movie: Candace Against the Universe (2020). They are most known for their comedy films together.