The animated film is based on the Chinese folk tale.
Unlike the original, the number of brothers in the film is reduced. There is no brother capable of stretching the legs, and a brother who was harder than the hardest iron itself.
The authors reversed the abilities of the first two brothers.
In general, the tale has several options, the number of brothers in which varies from five to ten.
In 2001, the animation was restored and re-voiced by Studiya AS LLC and Children's Session 1 LLC. In the new version the phonogram was completely replaced, modern actors are involved in the re-sounding.