I am watching it right now (coming off my weekend viewing of HENRY V) and I forgot how awesome this movie is. If you haven't picked this up and you are interested, GO GET IT... NOW.
My only complaint (while I do like Branaugh's vision) is that Fortinbras does not siege castle Hamlet and Osric does not die in the actual play. Other than that, the movie's dead-on and a perfect substitute for the play.