The actor was welcomed onstage at the Anaheim Convention Center by Disney boss Dick Cook to help the executive announce plans for the fourth Pirates film, On Stranger Tides.
Depp, who dressed and acted like his eccentric high-seas character Capt. Jack Sparrow, revealed that the new movie is slated for a summer 2011 release.
More than 5,000 fans, who packed the auditorium and the Disney convention, gave both Cook and Depp a standing ovation.
Cook also announced that Depp would play Tonto in an upcoming big-screen adaptation of The Lone Ranger.
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