In 'It's Always Sunny in Philadelphia,' Danny DeVito plays Frank, a gun-toting alcoholic slob. As such, you'd be forgiven for doing a double take upon hearing his voice in the first trailer for 'The Lorax'; it's odd that coherent, non-vulgar sentences are coming out of the actor's mouth! All joking aside, judging from this first look at 'The Lorax,' based on the popular Dr. Seuss book, it could be the finest Seuss adaptation since -- er, the cartoon 'Grinch Stole Christmas' from the '60s.