A Minute With: Vin Diesel on going dark, getting ripped and Facebook

BEVERLY HILLS, CALIFORNIA,   With a voice several octaves underground and a piercing stare, action star Vin Diesel goes to an even darker place as Riddick in the third installment of the sci-fi film series, nine years after ‘The Chronicles of Riddick.’ In ‘Riddick,’ which opens Friday, Diesel’s ex-convict character leaves his comfortable world as leader of the Necromonger death race to search for his homeland. Once double-crossed and left for dead, he resolves to rebuild himself, both physically and morally, but must do battle against beasts and bounty hunters. (AGENCIES)