Disney has announced a change in its official description for the film Frozen.  The film is being directed by Chris Buck and will feature the voice talents of both Kristen Bell and Idina Menzel. Release of the film is projected to occur in November of 2013.  
Original description of the film: 

In Frozen, a prophecy traps a kingdom in eternal winter, so Anna (voice of Kristen Bell) must team up with Kristoff, a daring mountain man, on the grandest of journeys to find the Snow Queen (voice of Idina Menzel) and put an end to the icy spell. Encountering Everest-like extremes, mystical creatures and magic at every turn, Anna and Kristoff battle the elements in a race to save the kingdom from destruction.

New description of the film:

When Anna is cursed by her estranged sister, the cold-hearted Snow Queen, Anna’s only hope of reversing the curse is to survive a perilous but thrilling journey across an icy and unforgiving landscape. Joined by a rugged, thrill-seeking outdoorsman, his one-antlered reindeer and a hapless snowman, Anna must race against time, conquer the elements and battle an army of menacing snowmen if she ever hopes to melt her frozen heart.