Pirates of the Caribbean: On Stranger Tides film provided him a long-awaited opportunity to work with Depp, and that his directing was helped by his experience as a choreographer—"the action sequences felt like big production numbers." On September 11, 2009, at Disney's D23 convention during a Disney event, Cook and Johnny Depp, in full Captain Jack Sparrow costume, announced that a fourth "Pirates" film was in development. The title was announced as "Pirates of the Caribbean: On Stranger Tides". Marshall visited the Pirates of the Caribbean ride in Disneyland for inspiration, eventually paying homage with a skeleton holding a magnifying glass in Ponce de León's ship. An
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