How many movies have Derek Wilson and Rich Delia collaborated on?

They have worked on 2 movies together! Their first movie together was Birds of Prey (and the Fantabulous Emancipation of One Harley Quinn) (2020) while their highest rated movie together was Teenage Mutant Ninja Turtles: Mutant Mayhem (2023). They have not worked together since Teenage Mutant Ninja Turtles: Mutant Mayhem (2023).