also dubbed as Disney‘s Folly was the first 83 minutes long animated feature that changed the parameters and the format of cartoon. (before that there were mainly only 6-10 minute long animations).It was considered a project insane.
It was also the first animation that released the soundtrack album for the motion picture. To continue even further it was technically brilliants, fascinating techniques, such as realistic, human like animation with the help of the rotoscope and the multiplane camera (special motion picture camera used in the traditional animation process that moves a number of pieces of artwork past the camera at various speeds and at various distances from one another) to imitate 3D effects.
The film also established relatively new thinking about the personalization of characters. The seven dwarfs all had different characterizations that not only were believable and memorable but also separated each one of them as individuality.
This was the second version of Brother Grimm‘s tale of Snowhite ( the first one being five minute long animation in 1933) except the sexual references or violence, more like a sanitized version of the story.
So the story, as probably well known, is about a girl with a rare beauty called Snowhite, who drives her stepmother jealous for this reason. The girl is sent to the woods to be killed there, but fortunately the Hunstman spares her life and lets her go. She then finds a mysterious house and soon after the seven dwarfs, the owners of the place. The story goes to Snowhite being wickedly fooled and killed by the witch (the stepmother) and finally saved by the prince at the very end.
The film literarily opened doors for the many other animated features, since it reestablished the parameters of the animation and made the what first looked as insanity become a norm so today we have many many animated features.