The film is essentially an adaptation of the
Song dynasty Chinese folktale
Legend of the White Snake (白蛇傳). Shin Uehara adapted the folktale and kept the Chinese-style characters and names. The decision of a Chinese story being used as the concept blueprint came from
Toei Doga president Hiroshi Ōkawa, who wanted to strike a tone of reconciliation with the Asian neighbors. Given the point in time, the film pushed Japanese animation technology to the limit. The film was a large-scale major project, involving a total of 13,590 staff; surprisingly, it only took eight months to finish. And while the film received honors at the
Venice Children's Film Festival in Italy in 1959, it was regarded as a disappointment when released to the United States on July 8, 1961, by Global Pictures. Historically, this film marked Tōei Dōga's first attempt to follow the example of American feature animation studios and become the so-called "
Disney of the east." The US version made changes to the film such as interpreting the small
red panda, Mimi, as a cat.
Rintaro, who would later go on to become a well-known and respected director of Japanese animation, had his first job in the animation industry (at age 17) as an
in-betweener on this film. ==Reception==