How many movies have Houko Kuwashima and Shigeru Chiba acted in together?

They have worked on 10 movies together! Their first movie together was Sergeant Keroro The Super Duper Movie 5: Creation! Ultimate Keroro, Wonder Space-Time Island (2010) while their highest rated movie together was Armored Trooper VOTOMS: Alone Again (2011). They have not worked together since 宇宙戦艦ヤマト2199 第七章「そして艦は行く」 劇場先行上映 (2013). They are most known for their animation films together.