Due to the series' high popularity in Japan and the rest of the world, four films based on Saint Seiya were released in theatres between 1987 and 1989, while the original TV series was still airing. The plots of these films do not comply with the chronology of the manga or anime storylines and therefore it is unknown at what point the events of the films take place. A fifth film named "Heaven Chapter: Overture" was released in 2004, originally intended to initiate a continuation of the manga. A sixth film, "", was premiered in 2014.