How many movies have Greg Emerson and Maral Simonian collaborated on?

They have worked on 6 movies together! Their first movie together was Batman: Bad Blood (2016) while their highest rated movie together was Happy Halloween, Scooby-Doo! (2020). They have not worked together since Scooby-Doo! and Krypto, Too! (2023). They are most known for their animation films together.