how can barry levinson possibly assemble white hot comedy talent ben stiller and jack black and the gorgeous rachel weisz and old pro christopher walken and still deliver such a humourless stinker . stiller and black be friend until the latter invents a spray to make dog mess vanish and become a conspicuous consume multi millionaire . the premise be thin but sound enough in the right hand to have be a springboard for some great bitching between the two star but all concerned overplay every hand and every chance they can . stiller and black be simply not funny for way too much of the time and weisz look sensational a always but be criminally underused and and with the exception of walken a a batty barfly who urge stiller character to take revenge and it a turgid trudge to the end of this strained farce .