Watch the new teaser trailer from Disney's "Frozen 2." From the Academy Award®-winning team-directors Jennifer Lee and Chris Buck, and producer Peter Del Vecho-and featuring the voices of Idina Menzel, Kristen Bell, Jonathan Groff and Josh Gad, and the music of Oscar®-winning songwriters Kristen Anderson-Lopez and Robert Lopez, Walt Disney Animation Studios' "Frozen 2" opens in U.S.