Sing-along with Idina Menzel in this full sequence from Disney's Frozen. Walt Disney Animation Studios, the studio behind "Tangled" and "Wreck-It Ralph," presents "Frozen," a stunning big-screen comedy adventure. 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