Complex sentence: Governor Swann and Commodore Norrington are reluctant to resume the hanging, however, right at that moment Elizabeth shows her love for Will so he's pardoned, while Sparrow escapes by falling off the sea wall.
Split into simpler sentences: Governor Swann and Commodore Norrington are reluctant to resume the hanging, however. Right at that moment Elizabeth shows her love for Will, and he is pardoned, while Sparrow escapes by falling off the sea wall.