Depp, who played the lead role in the 1990 movie "Edward Scissorhands," credits Richards for inspiring his character Captain Jack Sparrow in the Pirates of the Caribbean films, and the two are currently shooting the series' fourth installment, where Richards reprises his role as Sparrow's father.
Richards previously played the character in 2007's Pirates of the Caribbean: At World's End. It is uncertain how much screen time he'll get in the new film, hitting 3D, 2D and IMAX 3D theaters on May 20.
In "On Stranger Tides," Captain Jack Sparrow crosses paths with a woman from his past (Penelope Cruz), and he's not sure if it's love--or if she's a ruthless con artist who's using him to find the fabled Fountain of Youth. When she forces him aboard the Queen Anne's Revenge, the ship of the formidable pirate Blackbeard (Ian McShane), Jack finds himself on an unexpected adventure in which he doesn't know who to fear more: Blackbeard or the woman from his past.