How many movies have Hirotoshi Eto and Shigeru Don collaborated on?

They have worked on 1 movie together! Their first movie together was Dekotora no Shû - Sono go: Hi no kuni Kumamoto oyako tokkyû bin (2008) and was their highest rated movie together. They have not worked together since Dekotora no Shû - Sono go: Hi no kuni Kumamoto oyako tokkyû bin (2008).