How many movies have Liza-Ann Warren and Paul Dini collaborated on?

They have worked on 3 movies together! Their first movie together was Superman: The Last Son of Krypton (1996) while their highest rated movie together was Batman Beyond: Tech Wars / Disappearing Inque (1999). They have not worked together since Batman Beyond: Tech Wars / Disappearing Inque (1999). They are most known for their animation films together.