How many movies have Eiji Tsuburaya and Hisashi Shimonaga collaborated on?

They have worked on 22 movies together! Their first movie together was 音楽大進軍 (1943) while their highest rated movie together was Godzilla, the Monster of the Pacific Ocean (1957). They have not worked together since Godzilla (1977). They are most known for their science fiction films together.