How many movies have Michael Ryan and Sam Register collaborated on?

They have worked on 3 movies together! Their first movie together was Scooby-Doo! Mask of the Blue Falcon (2012) while their highest rated movie together was Straight Outta Nowhere: Scooby-Doo! Meets Courage the Cowardly Dog (2021). They have not worked together since Straight Outta Nowhere: Scooby-Doo! Meets Courage the Cowardly Dog (2021). They are most known for their family films together.