Unlike the book, the film is a full musical , featuring songs like "How Bad Can I Be?" and the finale "Let It Grow".
Despite only being fluent in English and some Italian, DeVito worked with phonetic coaches to record the Lorax's voice in . Lorax. En busca de la trГєfula perdida (2012)
As the Once-ler expands his factory, a counter on the screen tracks the disappearing Truffula trees and the rising pollution levels in Thneedville. Unlike the book, the film is a full