4. This wasn't the first experience with frozen things for Kristen Bell, who voices Anna. In high school she worked at the TCBY frozen yogurt chain.

5. Walt Disney wanted to make a movie based on the short The Snow Queen, which inspired Frozen, since the 1940s.

6. The production team visited a hotel made out of ice for design inspiration.

7. This is what the trolls from the movie actually looked like in the book: