How many movies have Hiroshi Yamaguchi and Tadashi Hiramatsu collaborated on?

They have worked on 4 movies together! Their first movie together was Neon Genesis Evangelion: Death and Rebirth (1997) while their highest rated movie together was Gurren Lagann the Movie: The Lights in the Sky Are Stars (2009). They have not worked together since Gurren Lagann the Movie: The Lights in the Sky Are Stars (2009). They are most known for their animation films together.