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, the eccentric pirate Captain Jack Sparrow (Johnny Depp) is forced into a shaky alliance with Angelica (Penélope Cruz), a mysterious woman from his past, as they embark on a quest for the Fountain of Youth, contending with the infamous pirate Blackbeard (Ian McShane) and outrunning Jack's old foe Barbossa (Geoffrey Rush).