Pirates of the Caribbean: On Stranger Tides is a 2011 American fantasy swashbuckler film, the fourth installment in the Pirates of the Caribbean film series and a standalone sequel to At World's End (2007). It is the first film in the series not to be directed by Gore Verbinski, replaced by Rob Marshall. Jerry Bruckheimer again served as producer. In the film, which draws its plot loosely from the 1987 novel On Stranger Tides by Tim Powers, Captain Jack Sparrow (Johnny Depp) is joined by Angelica (Penélope Cruz) in his search for the Fountain of Youth, confronting the infamous pirate Blackbeard (Ian McShane). The film was produced by Walt Disney Pictures and released by Walt Disney Studios Motion Pictures. It was the first film in the series to be released in the Disney Digital 3-D and IMAX 3D formats.