Mila Kunis has joined the stop-motion animated adult comedy "Hell & Back" reports Deadline.
In the pic T.J. Miller and Nick Swardson voice two best friends who must rescue their buddy when he's accidentally dragged to hell.
Kunis' provides the voice of the offspring of a horny Orpheus who sired her during his journey down the River Styx--She has a keen ability to navigate the underworld.
Rob Riggle, Brian Posehn and Kumail Nanjiani also star.
Tom Gianas and Ross Shuman direct using a script they wrote with Hugh Sterbakov.
Alexander Bulkley and Corey Campodonico are producing the 2013 release