Meh.
No surprises here. It's a Harry Potter Film. It's like other Harry Potter Films
you may have seen. Only there's less in it. It's not that it's bad, it's just
got the slenderest of plots. New teacher has a secret that we need to know, and
the Bad Guys have a plot to get into Hogwarts. That's basically it. Everything
else is snogging and shagging in the lower sixth.
Jim Broadbent turns up, being the latest member of the British acting
establishment to be caught in the inevitable gravitational pull of the HP
machine, and he does a great job, being the slightly creepy and slimy, but
ultimately quite likeable Professor Slughorn.
Everyone other than him, Harry, Ron, Hermione and Dumbledore is seriously
downgraded to bit part status, and much is left unexplained. Particularly what
"Half-Blood Prince" is supposed to mean. I faintly remember we were told in the
book, but the film doesn't bother. It seemed a weak enough thing to hang the
title of the book on, and even weaker with the film.
Recommendation: Well, if you watched the first five, and intend to see the
seventh, then you may as well. Far from essential to see it in the cinema
though.