The initial 2 minutes of this movie come from the Jungle Emperor Leo (1965) television show, but the remaining portion is entirely original. Tezuka was thrilled that this film precisely depicted his narrative, which he couldn't achieve with the TV series.
Masaki Tsuji is a renowned Japanese writer who has worked on TV series and films as well as mystery novels. He was most active from the 60s to the 80s, and wrote scripts for many popular anime TV show...
Rintaro, whose real name is Hayashi Shigeyuki from Tokyo, has used several aliases such as Kuruma Hino and his current pseudonym. He co-founded Madhouse and is a founding member of the Japanese Animat...
Masayuki Hayashi is Rintarou's brother and also a director at Mushi Production like his sibling. He collaborated with his brother on various projects....