Riddick: In a recent interview with Empire Online, actor Vin Diesel and writer / director David Twohy talked about the future of the The Chronicles of Riddick franchise...

"From the very very beginning, when everyone thought it was crazy, I was thinking of The Chronicles of Riddick as a trilogy," said Diesel. "That would start with the movie you saw, and Pitch Black would act as a prequel that introduced you to the character. So in simple terms, in Chronicles 2 we venture to the Underverse. We knew we could get away with a PG-13 on the first one, but once you go to the Underverse it's rated R, because it's a place where war is the norm and there is constant, constant battling. Then on Chronicles 3 we will see Riddick return to Furia, to deal with the homeland."
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David Twohy on the future of the films...

"We did a lot of talking in this film about the Underverse, and one way of talking about it is the promised land - that this leader of this new Necromonger faith has found. If you want to look at it more scientifically, scientists have this concept of multiverses - multiple universes, y'know. The idea is that this 'verse they talk about, this Underverse, is a parallel universe, and the door to that, the portal to that place, has been found by the Lord Marshal. And he is the one guy who has stepped across, and gazed upon its beauty and its power, and taken a little bit of it back with him. So there's much to be plundered there."
Brian B. at Movieweb
Brian B.