Johnny Depp poses during a photocall for the French screening of 'Pirates of the Caribbean: Dead Man's Chest' in Paris July 6, 2006. [Reuters]

If all goes right, "Pirates of the Caribbean" actor Johnny Depp might soon be singing "Yo ho ho, give me a fourth bottle of rum."

The star of the upcoming film, "Pirates of the Caribbean: At World's End," told Entertainment Weekly magazine in an issue hitting newsstands on Friday that he is open to making a fourth film in the blockbuster series, which has earned more than $1.7 billion at worldwide box offices.

"As long as you're doing it for the right reasons, why not?" Depp told the magazine. "If we came up with a story where we could explore something absurd or funny or totally insane."

In the movies, Depp plays a buccaneer known as Captain Jack Sparrow, distinguished as much for his swishy hips and love of adventure as his pirating skills. The 43-year-old actor's portrayal of wildly funny Sparrow has been credited with much of the franchise's popularity.

The first film in the series, "Pirates of the Caribbean: The Curse of the Black Pearl," was a surprise hit with audiences and critics in summer 2003, and last year "Pirates of the Caribbean: Dead Man's Chest" turned in blockbuster results despite mixed reviews for too many plot twists.

"At World's End" debuts on May 25 and anticipation is running high. But the stars, including Depp, Orlando Bloom, Keira Knightley and Keith Richards of the Rolling Stones, are remaining mostly mum when asked to explain the plot of the third film.

"Someone asked me, 'So tell us about your character's arc in the third movie,"' Bloom told Entertainment Weekly. "I said, 'Dude, the writers can't even explain the third movie."'

If, like the second movie, "At World's End" takes its lumps for a twisted plot, Depp is not worried.

"With this one, they're probably going to do the same thing and maybe even go below the belt," he said of the critics.

Depp praised the acting of Richards, who plays Depp's father in the movie and whom Depp has credited with inspiring his portrayal of Jack Sparrow.

"What I didn't expect was he was going to be such a great actor," Depp said. "It was like a gunslinger who arrived in the town, charmed all the women and impressed all the men and then split."