I have seen this movie 47,395 times (well it feels like it anyway). It's the only movie we've found that 3yo DD will watch for longer than 10mins.
While I know I should be limiting her screen time, quite frankly I am all for a movie or two to get through the day while I've got a newborn.
Frozen seems to work because of the singing, type of animation and she likes the characters. Does anyone have any suggestions for similar movies? She'll occasionally watch Toy Story, no interest in the older style animation like the little mermaid etc.