How many movies have Mark A. Keatts and Robert J. Kral collaborated on?

They have worked on 9 movies together! Their first movie together was Batman: Gotham Knight (2008) while their highest rated movie together was Scooby-Doo! and the Curse of the 13th Ghost (2019). They have not worked together since Scooby-Doo! and Krypto, Too! (2023). They are most known for their animation films together.