Complex sentence: Her true motives for resurrecting Barbossa and Jack is revealed when it is clear that both men are Pirate Lords of the Brethren Court, and have their respective "Pieces of Eight", the talismans necessary to free the sea goddess, Calypso.
Split into simpler sentences: Her true motives for resurrecting Barbossa and Jack are revealed when it is learned that both are Pirate Lords of the Brethren Court. Each has their respective "Pieces of Eight", the talismans necessary to free the sea goddess, Calypso.