Continuity mistake: As the boom slams into Will, there's no pile of rope lying at the stern, only one line. In the next shot, Jack reaches down to pick up Will's sword and now there's a pile of rope lying on deck. When Jack swings the boom back and Will drops on deck, there's no pile of rope on deck again. This doesn't refer to the rigging lines attached to the boom.
Picture added & edited by A Demon
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