While the "Pirates of the Caribbean" franchise made Johnny Depp a global superstar, the popularity of the franchise didn't rest just on his shoulders.  It's no secret that most of the fun in the first and third movie was found in the electric banter between Depp's Jack Sparrow and Geoffrey Rush's Capt. Barbossa as they battled over who really owned the Black Pearl.  You could even make the argument Rush's presence was more important than now departed series stars Orlando Bloom and Keira Knightly.  So, it's no surprise -- in what must have been months of negotiations -- Geoffrey Rush is finally and officially back on board the fourth installment of Disney's sea-faring adventures, "Pirates of the Caribbean: On Stranger Tides."  No word on whether Barbossa will stay the modestly "good" guy he'd become by the third film or team up with Ian McShane's Backbeard as an adversary for Sparrow. 

Production is currently underway in Hawaii.