How many movies have Akio Otsuka and Tetsuya Kakihara acted in together?

They have worked on 5 movies together! Their first movie together was Vexille (2007) while their highest rated movie together was Mobile Suit Gundam: The Origin III - Dawn of Rebellion (2016). They have not worked together since Mobile Suit Gundam: The Origin VI – Rise of the Red Comet (2018). They are most known for their animation films together.