Hot on the heels of the first trailer for the significantly delayed genre pic Hansel & Gretel: Witch Hunters, a witch hunting film of a different sort may have found its lead.  The Wrap reports that Vin Diesel is in talks to star in The Crazies director Breck Eisner’s The Last Witch Hunter.  Diesel would play one of the last remaining witch hunters who is tasked with “discouraging a group of witches and warlocks from reproducing.”  Vin Diesel: Cock Blocker was previously set up as a directing vehicle for Wanted’s Timur Bekmambetov, but he’s now only onboard in a producer role.  The script for the Lionsgate/Summit film was written by Cory Goodman (Priest).Diesel is currently in London filming the Justin Lin-helmed sequel Fast & Furious 6, and he recently wrapped the third installment in his Chronicles of Riddick series, Riddick.  The actor is also attached to star in the Iron Giant-esque possible franchise-starter The Machine, in which he'll play a government-created machine that must protect the family who's harboring him.