Pirates 3
Pirates of the Caribbean: At World's End had approximately four good moments scattered throughout three hours of mostly uninteresting nonsense.
Too much wrong with it to go into really, but one particular complaint - Davy Jones, the terrifying villain of the second movie, is unceremoniously reduced to an utterly pathetic blustering drip. There's a bit where he knocks a cup of tea out of someone's hand. Oooooh, scary. That's like having Darth Vader give someone a Chinese burn.