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 the Caribbean: On Stranger Tides" the most expensive film ever made to date. Bruckheimer said the decision to film in 3D was made due to its being "immersive filmmaking; I think it makes you part of the actual filming because you're part of the screen." Bruckheimer described it as the first major "exterior movie" to be shot in 3D, as "Avatar" was mostly done in sound stages. At first Marshall was not much interested in 3D, but the director eventually considered it a film that could benefit from the format. "You are on an adventure and with the 3D experience