On Stranger Tides his inspiration for the ambience of the series, while his true inspiration was "On Stranger Tides". In 2007, after the successful opening weekend of the third "Pirates of the Caribbean" film, "", Walt Disney Studios Chairman Dick Cook said he was interested in a fourth film. The Los Angeles Times also reported that Bruckheimer already had rights to a book that could end up as another installment, though had not confirmed what book it was. On September 11, 2009, Walt Disney Pictures announced that the fourth installment would be titled "". The announcement had fueled speculation that the film would
On Stranger Tides Before the film began production, it was speculated that Jack Sparrow would replace Jack Shandy as the story's protagonist. Tim Powers stated that the Fountain of Youth would definitely be in the film because it was teased in "At World's End", but also said that Sparrow and Shandy are "totally different characters", and that Hector Barbossa and Blackbeard might overlap. On March 22, 2010, Jerry Bruckheimer confirmed that both Barbossa and Blackbeard (portrayed by Ian McShane) would be in the film, with Blackbeard as the villain. Additionally, Penélope Cruz would play Angelica, Blackbeard's daughter. While making the fourth film, screenwriter