Pirates of the Caribbean: On Stranger Tides appearance of "Old Bill", the pirate who tries to share his rum with a cat, was also filmed but cut. Pintel and Ragetti were originally supposed to make an appearance, but director Rob Marshall opted out of the idea as he feared their roles would be cut. Cook resigned in September 2009 after working for Disney for over 38 years. Depp's faith in "Pirates of the Caribbean: On Stranger Tides" was somewhat shaken after the resignation, with Depp explaining that "There's a fissure, a crack in my enthusiasm at the moment. It was all born in that office". Depp also
Pirates of the Caribbean: On Stranger Tides explained Cook was one of the few who accepted his portrayal of Jack Sparrow: "When things went a little sideways on the and others at the studio were less than enthusiastic about my interpretation of the character, Dick was there from the first moment. He trusted me". During production of "" and "At World's End", writers Ted Elliott and Terry Rossio discovered Tim Powers' 1987 novel "On Stranger Tides", which they considered a good foundation on which to base "a new chapter" in the "Pirates" series. Disney bought the rights to the novel in April 2007. Rossio stated that he