"Angle of approach - not good"

Finally watched the Chronicles of Riddick last night. There's an hour and a half of my life I'm not getting back. It was a shame really, because I loved the universe it was in - the races, the planets, the sets, the whole concept of the film - I just didn't give a toss about any of the characters. It felt like an over-long pilot for a series - are they doing one? Can we have a new writer? And preferably a new cast (excepting Judi Dench - she can stay as long as they promise to do more with her character).