The reviews are in and essayist and author David Rakoff, who has a biting and rather phenomenal sense of humor, doesn't think it's funny at all, writing in Salon:
Baron Cohen's Brüno is a gay minstrel, in the most literal sense of the word. Just as the characters of the burnt-cork vaudevillians had, bound up ineluctably with their dark complexions, traits like being shiftless, lazy, and "a-feared of spooks" as their eyes bugged out in Neanderthal, superstitious terror, Brüno's homosexuality comes bundled up with a lot of unattractive software. He is an open hydrant of empty, venal ignorance, a fame-chasing, grandiose fucktard, all because he is a cockaholic (his term). The repeated pistoning of sucking dick has scrambled his brains, just as surely as a muddler pulverizes mint leaves. Make no mistake: It is gay sex that has made Brüno stupid. Perez Hilton has the sobriety, moral rectitude and class of Lewis Lapham by comparison.