How many movies have A.J. Ullman and Paul Sabella collaborated on?

They have worked on 3 movies together! Their first movie together was My Little Pony: The Princess Promenade (2006) while their highest rated movie together was Hydee and the Hytops (2011). They have not worked together since Hydee and the Hytops (2011). They are most known for their animation films together.