How many movies have Megumi Murakami and Risa Niigaki acted in together?

They have worked on 25 movies together! Their first movie together was Hello! Project 2002 Summer ~ONE HAPPY SUMMER DAY~ (2002) while their highest rated movie together was Hello! Project 2004 Winter ~C'MON! Dance World~ (2004). They have not worked together since Petit Best 20 2020 (2020).