Based on

Movies like Neon Genesis Evangelion: Death and Rebirth (1997)

Originally a collection of clips from the Neon Genesis Evangelion TV series, Death was created as a precursor to the re-worked ending of the series. Rebirth was intended as that re-worked ending, but after production overruns Rebirth became only the first half of the first part of The End of Evangelion, with some minor differences.