How many movies have Barry Gordon and David Wise collaborated on?

They have worked on 3 movies together! Their first movie together was Teenage Mutant Ninja Turtles: Heroes in a Halfshell (1988) while their highest rated movie together was Teenage Mutant Ninja Turtles: The Epic Begins (1988). They have not worked together since Teenage Mutant Ninja Turtles: Planet of the Turtleoids (1991). They are most known for their animation films together.