Castle Hill Prods. Inc. has acquired theatrical distribution rights to director Beth B’s adaptation of playwright Neal Bell’s “Two Small Bodies.”It plans to release the Fred Ward/Suzy Amis starrer in March or April. Skedded to play at the Sundance Film Festival, “Two Small Bodies” is a two-character piece about a police detective and a woman whose two small children have disappeared under mysterious circumstances. B said in a statement she was drawn to the piece by its “perverse sexuality and its thoughtful intelligence.” Specialized film distributor Castle Hill has handled such theatrical releases as Orson Welles’ “Othello” and a retrospective of films from John Cassavetes. Fox Lorber Home Video holds the video rights to the pic.