Tangled – The Sort-Of Sequel?
The first CG fairy tale from Disney was a massive hit, but it actually began as a sort-of sequel to Enchanted, a movie about a cartoon Disney princess thrown into the real world.
Rapunzel would have been turned into a squirrel just like Enchanted‘s Pip, with a girl from the real world being thrown into her place in the animated one. Thankfully, some changes were made.