Trivia / Terror of Mechagodzilla
Edited for Syndication: The television cut by UPA, which was chosen for the Classic Media DVD release as the included english version. While not Bowdlerized to the same extent as the theatrical release (there's a shot of Katsura's bare breasts that was edited out, and nothing else), this version also adds a bizarre prologue with narration recapping the past Godzilla films over stock footage of the other two Godzilla films UPA had the rights to ( and Invasion of Astro-Monster . Since the latter was itself a All Monsters Attack Stock Footage-filled movie, this meant they were also using footage from and Ebirah, Horror of the Deep ).
Son of Godzilla Enforced Method Acting, Throw It In!: During the climactic battle, one of the explosions sets Godzilla's spikes on fire. The actor in the suit (Toru Kawai) is visibly freaking out, even through a hundred pounds of foam rubber.