There was a doll that a movie was made about or vice versa, I can't remember. Anyway, these 2 girls, one is the doll, crawl through a little toy tunnel type thing and turn into a cartoon. They meet a rich spoiled girl and she has all these amazing toys in a huge room in her mansion. Then there is a boy and a horse... AH! I don't remember, but something like that. Can anyone help?