0HtACLaRDk0‘Frozen’ Sing-Along Version hits Theaters: Watch and Sing ‘Let it Go’ Disney’s “Frozen”, one of the biggest box-office hits in the studio’s history, will be available to be experienced in a new way. More than 2000 theaters nationwide are staged to showcase the all-new sing-along version beginning Jan. 31. Check your local listings for showtimes and theaters. “Fearless optimist Anna (voice of Kristen Bell) sets off on an epic journey—teaming up with rugged mountain man Kristoff (voice of Jonathan Groff) and his loyal reindeer Sven—to find her sister Elsa (voice of Idina Menzel), whose icy powers have trapped the kingdom of Arendelle in eternal winter. Encountering Everest-like conditions, mystical trolls and a hilarious snowman named Olaf, Anna and Kristoff battle the elements in a race to save the kingdom.”