potc stands for pirate of the caribbean, which are movies that star johnny depp, orlando bloom, and keira knightley. In my opinion pirates of the caribbean is one of the best movies ever made. Johnny depp plays jack sparrow who is a pirate, orlando bloom plays will turner who used to be a blacksmith but turned into a pirate during the 1st movie, and keira knightley plays elizabeth swan who is also a pirate and is married to will turner which happened during the big fight scene in the 3rd movie.