Special effects director Eiji Tsuburaya was planning on working on other projects at this point in time such as a new version of a fairy tale film script called "Kaguyahime" ("Princess Kaguya"), but he postponed those to work on this project with Toho instead since he was such a huge fan of King Kong. He stated in an early 1960s interview with the Mainichi Newspaper, "But my movie company has produced a very interesting script that combined King Kong and Godzilla, so I couldn't help working on this instead of my other fantasy films. The script is special to me; it makes me emotional because it was "King Kong" that got me interested in the world of special photographic techniques when I saw it in 1933."