How many movies have Mitsuo Iwata and Tsuneo Tominaga collaborated on?

They have worked on 2 movies together! Their first movie together was Initial D: Battle Stage 2 (2007) while their highest rated movie together was Initial D: Extra Stage 2: Tabidachi no Green (2008). They have not worked together since Initial D: Extra Stage 2: Tabidachi no Green (2008).