There are plenty of detailed critiques of the performances and production on here which I won't attempt to emulate; this review is rather for the casual browser who is hovering around the 'add to basket' button. So - Yes! I bought this at a price pretty much equivalent to rental - and I would heartily recommend it as great value and good entertainment. It has its weaknesses - the DVD transfer is not particularly high quality (I'd like to see a fully restored, Blu-Ray version) and has no supplementary material. Of the performances, only Keanu Reeeves' is really dubious - he brings to the part of John the Bastard an impressive physique and little else. There's also some of that rather cloying best buddies quality that accompanies Branagh's core troupe. However, overall it trips along with a light touch and is very entertaining - genuinely so on the strength of the play, not just for the interest of the interpretation. The cinematography and scenery are superb (though again, some colour restoration would have helped, and some of the cast had gone very pink in the Italian sun!). I enjoyed Keaton's perfomance as Dogberry, though I struggled to hear everything he said, and it did remind me of Beetlejuice. I'd forgotten how luminously beautiful and engaging the young Kate Beckinsale was before she became Hollywood Barbie (sigh..), and was very impressed by the naturalness of Denzel Washington's delivery, as Branagh's integration of US actors sometimes jars.
You don't have to be a Shakespeare fanatic to enjoy this, but there is equally plenty there to satisfy the enthusiast. Hit that button!