How many movies have Saori Hayami and Yuiko Tatsumi acted in together?

They have worked on 2 movies together! Their first movie together was 声優DVD企画 宝探し～ミネルヴァの箱～in 河口湖オルゴールの森美術館 (2013) while their highest rated movie together was The Irregular at Magic High School: The Girl Who Summons the Stars (2017). They have not worked together since The Irregular at Magic High School: The Girl Who Summons the Stars (2017).