How many movies have Futoshi Oonami and Hiromi Muranaka collaborated on?

They have worked on 3 movies together! Their first movie together was You're Under Arrest: The Motion Picture (1999) while their highest rated movie together was Detective Conan: The Private Eyes' Requiem (2006). They have not worked together since Detective Conan: Full Score of Fear (2008). They are most known for their animation films together.