(ATTN TV EDITORS: For TV Book cover consideration) Sigourney Weaver stars in “Snow White: A Tale of Terror,” premiering on Showtime on Sunday, Aug. 24 at 9 p.m. (ET/PT). Set in 1493 in the German Black Forest, the film returns to the original Grimm Brothers fairy tale to recount the terrifying story of a widower, Baron Frederick Hoffman, who remarries a seemingly kind noblewoman, Claudia. When a rivalry develops between Claudia and the Baron’s daughter, attempted murder and a prophetic mirror lead to amystical battle of wits and a fiery climax. (Showtime photo)