Has no one gone to see this? I saw it yesterday and thought it was wonderful. For one, it shows how beautiful a well-lensed B&W film can be. For another, as John Oliver on The Daily Show pointed out, the actors deliver Shakespeare's verse in a manner that is pretty easy to follow (the plot is fairly convoluted, however, so it might be advisable to wiki the play and be aware of what will be happening). The updating of the play actually works quite well. And, though I love Shakespeare greatly, I have seldom found his comedies to actually come across as laugh-out-loud funny; this one actually is funny (though parts are quite serious). Lastly, Whedon makes good use of his ensemble, with some actors playing against type. Others conform to expectations, often to make it easier to tell what sort of person is being portrayed.
Hey, it is Shakespeare. You have to work at it. But it's fast-paced and rewards patience. I'll get the Blu-ray once the price is right.