Joining Jonah

Will Arnett and recent Oscar nominee Michael Shannon (Revolutionary Road) have joined the adaptation of "Jonah Hex"says The Hollywood Reporter.

Jimmy Hayward directs the story of Hex (Josh Brolin), a bounty hunter tracking a voodoo practitioner (John Malkovich) who wants to raise an army of the undead to liberate the South.

Arnett will play a Union soldier who enlists Hex and is blindsided by the dirty fighting style of his enemies. Shannon plays Doc Cross Williams, the bizarre ringleader of a brutal gladiator circus event.

The DC Comics based flick is written by Mark Neveldine and Brian Taylor

Filming kicks off this month in Louisiana.