Harry Potter and the Half-Blood Prince

Unspoiled version: as with the book, I thought this had some powerful scenes but also somewhat suffered from the fact JKR crammed all the teenage romance she wouldn't have time for in the last volume in this one. Jim Broadbent is great as Horace Slughorn, this is hands down Michael Gambon's best performance as Dumbledore so far, Tom Felton steps up to the plate (which is important as this is the first book where Draco Malfoy becomes a) important to the plot and b) a more dimensional character), and Alan Rickman is great as ever. THAT scene is just perfect. On the downside of things, for me the feeling of the film went back to the "Rushed Cliff Notes on Harry Potter" or "Illustrated Highlights of Harry Potter" sense I had from the first two movies and which I thought the later ones somewhat successfully avoided. I also have no idea whether the film will make any sense at all if you haven't read the novels.

( Spoilery version )