Harry Potter and the Half-Blood Prince (2009)
Since I actually became a fan of the Harry Potter books (I was late to that game), I haven't watched the movies as critically as I used to. I enjoyed the sixth movie very much. On reflection, it's missing a lot of the most important stuff from the book (many memories concerning Voldemort, for example). But I still liked it. I love the mix of normal teenage stuff and life-or-death danger.