Unstoppably hot British sexpot Rhona Mitra has joined the cast of the indie thriller THE BOY IN THE BOX. She joins Josh Lucas, Jon Hamm, James Van Der Beek, Marcus Thomas, Jimmy Bennett and Jessica Chastain in a story centering on a small town police chief’s (Hamm) attempt to make sense of the recently discovered mummified remains of a boy who was murdered a half-century earlier. Mitra will be playing the police chief’s wife, who herself is still coping with the disappearance of her own son eight years earlier. Lucas will play the father of the murdered boy. Production will be underway in the next few months under director Anders Anderson from a screenplay by Glenn Taranto. Mitra and her smoking hot ass can next be seen in DOG SOLDIERS director Neil Marshall’s sci fi epic DOOMSDAY and in the UNDERWORLD prequel RISE OF THE LYCANS.