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
Pirates of the Caribbean: On Stranger Tides and Terry Rossio had been working on for release on May 20, 2011. He hoped Gore Verbinski would return to direct the fourth film, as his "BioShock" film adaptation had been put on hold. As Verbinski was unavailable due to his commitment with "Rango" the same year, Bruckheimer suggested Rob Marshall, who he considered a "premiere filmmaker", stating that "Every film [Marshall] made I thought was unique and different." On July 21, 2009, Marshall accepted the job, because of the "whole new story line and set of characters. It felt new, and that was important to me." Marshall said the