The Lorax has returned, this time with an added dimension. Universal Pictures has released the trailer for its 3-D feature film adaptation of Dr. Seuss's classic 1971 environmental fable "The Lorax." The animated movie features the voices of Zac Efron, Ed Helms, Betty White, and country superstar Taylor Swift. Danny DeVito provides the voice of the Lorax. The movie is due in theaters on March 2.