How many movies have Bob Kane and Charles Halford collaborated on?

They have worked on 3 movies together! Their first movie together was The Death of Superman (2018) while their highest rated movie together was Scooby-Doo! and Krypto, Too! (2023). They have not worked together since Scooby-Doo! and Krypto, Too! (2023). They are most known for their animation films together.