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 (soundtrack) ago", and that he decided to add a "Spanish element" to "On Stranger Tides". Many musicians worked with Zimmer in the score. The biggest collaborators were Mexican duo Rodrigo y Gabriela, whose music Zimmer met after being given their album by a friend. Zimmer said they were picked for the soundtrack because the duo "play rock n' roll with flamenco guitars". American composer Eric Whitacre helped with choir-based songs, most notably the mermaid theme, and brought along his soprano wife, Hila Plitmann. Penélope Cruz's brother Eduardo Cruz wrote a tango song, and Geoff Zanelli contributed to many tracks. Trumpetist Arturo