What’s surprising about Me, Myself & Irene is not how much the funny parts make us laugh but how forgettable the rest of it is. Even the most brain-dead mallrat will sense something oddly mediocre about this latest addition to the Farrelly brother oeuvre. When the bodily fluids and general mean-spiritedness stop flying, the movie’s banality glares like cheap aluminum siding. And every scene has a whiff of deja-vu. In some cases, the Farrelly brothers steal from their own movies. With Me, Myself & Irene, they’ve degenerated into class clowns who’ve resorted to endlessly repeating their own fart and pee jokes.