Destroy All Monsters

This film is considered the end of Toho's Golden Age of monster films and was intended to be the final Godzilla entry. However, it was successful enough that it was decided to continue the series, albeit as part of a film campaign called the Toho Champion Festival, a seasonal matinee specifically targeting children. This meant subsequent films would reduced budgets and staff since Godzilla movies were just too expensive to continue making in their original manner. For example this film, and the ones prior, had two or more large groups of crew members that divide the work on the character drama and special effects sequences. Case in point, cinematographer Taiichi Kankura shot the live-action character drama directed by Ishirô Honda while different cinematographers, Yôichi Manoda and Motoyoshi Tomioka, shot the monster sequences directed by Sadamasa Arikawa. Subsequent films would reduced this to a singular crew that had to manage those aspects.

When the reporter announces that Baragon is attacking Paris, it is actually Gorosaurus. The Baragon suit was loaned out to Tsubaraya Productions for use on one of their television series and wasn't returned in time for filming.

In Toho's international version, their English language credits list special effects director Sadamasa Arikawa as "Sanemasa Arikawa."

A Toho Video documentary released in the 1980s contained several unused and deleted takes from this film. The majority of this footage consists of alternate takes of finished scenes, such as the raids on Moscow and Paris by Rodan and Gorosaurus (respectively). Toho also filmed much more footage of the UN's defense of Tokyo, including a number of shots of missile launchers being deployed from the roofs of skyscrapers. The most notable unused shot in this feature has Godzilla thrashing the monster Manda against several Tokyo buildings. According to Haruo Nakajima, this was an impromptu act at the end of a take. This was likely removed from the finished film as both monsters were under Kilaak control and shouldn't have been fighting.

Edited into Godzilla vs. Gigan (1972)