Saint Seiya: The Heaven Chapter - Overture is an anime film that premiered in winter 2004, produced by Toei Animation.

About the production: the story comes from an original script, the film runs about 80 minutes and its current status is "finished".

Its main genres are adventure and sci-fi, with themes such as Shounen, Mythology, Astronomy and Super Power.

On AniList, Saint Seiya: The Heaven Chapter - Overture has an average score of 69%, a good score, and appears on 6,148 users' lists.

The franchise continues in or follows from: Saint Seiya: Meiou Hades Elysion-hen and Saint Seiya Ω.

After the Saints' victory against Hades, Seiya is left wounded and motionless in a wheel chair with no possible chance of recovery. Athena's sister Artemis, the Virgin Goddess of the Moon and twin sister of Apollo, makes an elaborate proposal - to restore Seiya's physical health in exchange for the supremacy of Sanctuary. Athena accepts and Artemis and her "Knights of the Sky" swiftly take control of Sanctuary. Now Seiya and his fellow Bronze Saints combat the forces of Zeus to regain their homeland but it will not be so easy. Bronze Saints Hydra Ichi and Unicorn Jabu, and Silver Saint Ophiuchus Shaina have join forces with Artemis and Apollo. (Source: Anime News Network)

Official synopsis from AniList.