The success of Disney’s animated behemoth Frozen is something that was hard to imagine last November. The studio had not put a lot behind the film’s marketing campaign (save a misleading trailer that focused on comic relief characters Sven and Olaf) and sandwiched the release between two major box office guarantees, the sequels to The Hunger Games and The Hobbit. But, audiences of young girls and their parents could not get enough of the touching story of two sisters, as well as the delightful musical numbers. (We really need to let it go with all of the “Let It Go” videos online.) Word-of-mouth quickly spread and at the time of the film’s Blu-Ray and DVD release, it still lingers in the lower part of the weekend box office Top 10 – 16 weeks after it opened. Also, the film is the biggest animated hit in Disney’s history, internationally (although...