UFO Robot Grendizer vs. Great Mazinger (1976): cast, story & where to watch

Released in 1976, UFO Robot Grendizer vs. Great Mazinger is an action, adventure, animation and science fiction film directed by Osamu Kasai, running about 24 minutes.

What it’s about. Alien invaders take over Great Mazinger who is at the entrance of a museum next to Mazinger Z as symbols of peace. Grendizer fights the evil invaders and Great Mazinger is recovered. When the Vegan empire dispatches a new general to oversee the takeover of Earth, he quickly manages to capture Koji Kabuto and, learning of Great Mazinger through interrogation, quickly commandeers it from a museum where it was kept as a symbol of peace. It is now up to Duke Fleed aboard Grendizer to stop humanity's former defender from becoming its destroyer.

Who’s in it. UFO Robot Grendizer vs. Great Mazinger stars Kei Tomiyama as Duke Fleed / Daisuke Umon, Joji Yanami as Dr. Umon, Hiroya Ishimaru as Kouji Kabuto and Chiyoko Kawashima as Hikaru Makiba, among others.

How it landed. With an audience score of 5.9/10, UFO Robot Grendizer vs. Great Mazinger has drawn a solid, mixed-to-positive response.

Where to watch. Streaming options change often. See the full, country-by-country breakdown on our where to watch UFO Robot Grendizer vs. Great Mazinger page.

If you liked it. Fans of UFO Robot Grendizer vs. Great Mazinger tend to enjoy The Dark Knight, The Lord of the Rings: The Return of the King, Inception and The Lord of the Rings: The Fellowship of the Ring.