How many movies have Alex Hirsch and Linda LaMontagne collaborated on?

They have worked on 2 movies together! Their first movie together was The Angry Birds Movie 2 (2019) while their highest rated movie together was Teenage Mutant Ninja Turtles: Mutant Mayhem (2023). They have not worked together since Teenage Mutant Ninja Turtles: Mutant Mayhem (2023).