Complex sentence: Mr. Cotton does not appear in "On Stranger Tides", although his parrot is seen trapped on the "Black Pearl", which was magically shrunk and imprisoned in a bottle by Blackbeard.
Split into simpler sentences: Mr. Cotton does not appear in "On Stranger Tides". His parrot appears to be trapped on the "Black Pearl", which was magically shrunk and imprisoned in a bottle by Blackbeard.