Disney ripped off most of its story's from the Brothers Grimm and more earlier authors in far more darker stories. Disney cleaned them up.
See for example this:
http://disneyvsgrimms.blogspot.com/
Quote:
Snow White
In the original - the Queen requests the lungs and liver (as well as the heart) of Snow White to eat for dinner that night.
In the original - Snow White is not awakened by a kiss from the prince (like the Disney version) - she is awakened when she is jostled by the horse on which her coffin is being carried by the prince.
Cinderella
In the original - the step-sisters of Cinderella try to cut off different parts of their feet to make them fit into the glass slippers.
The Prince is alerted of the step-sisters by two carrier pigeons who then peck out the step-sisters eyes. The step-sisters live as blind beggars for the rest of their lives.