グレートマジンガー
is a 1976 animated short film that crosses over Go Nagai's super robots "Grendizer" and "Great Mazinger". The movie features alternate versions of events from both series, and, as with the rest of the "Vs." films, is not canonical to either one. The film was released in almost all countries where the original "Grendizer" and "Great Mazinger" series were also shown, most prominently in Italy, France and the Middle East.