Two surprise announcements followed an equally surprising live musical performance by Miley Cyrus at Disney's D23 Expo.

Disney Studios Chairman Dick Cook officially named Summer 2012 as the release date for Pixar's John Carter of Mars, claiming that the film will, indeed, be live-action with intense special effects.

Following the announcement, Johnny Depp appeared in full Jack Sparrow costume, taking the stage and announcing a Summer 2011 release date for Pirates of the Caribbean: On Stranger Tides, the new title for the fourth installment!