If you have young kids in your life, you have probably seen Disney's "Frozen" a THOUSAND times, but how well do you really know it?

You can sing "Let It Go" BACK-to-front, but what else do you know about the huge animated hit from Disney?

Here are a few things that you probably didn't know... did you know that there is a hidden Mickey Mouse in ‘Frozen’? Or, that it took a team of 600 animators over three-MILLION-hours to make this movie?

Watch the video above and see what else you never knew about "Frozen".