Pirates Of The Carribean: Dead Man's Chest. I guess the big worry was that this would go the same way as the Matrix series - a good film followed by two feeble sequels. To my mind they've avoided it, although on a first viewing I think I'd still rate the first film as comfortably the better.
Orlando Bloom was definitely reminding me of Wesley from The Princess Bride at points. Keira Knightley's character took a while to get going, spending the first half of the film trying to catch up with the plot rather than advancing it; but makes up for it by the end of the film.
The film has the Hyperion nature - although the end is a stopping point, it's only half way through the story. People who've been paying attention possibly knew this already.