Agatha Christie meets Douglas Sirk in 8 Women, a high-camp musical whodunit whose cast is a French-movie fan's wet dream. Catherine Deneuve stars as the murder victim's impeccably bourgeois wife; Isabelle Huppert plays her spinster sister; Virginie Ledoyen is her wayward daughter. Fanny Ardant (a shady sister-in-law) and Emmanuelle Béart (a flirty maid) also join in the fun. Watch them sing, dance, and search for clues as the snowdrifts deepen outside their château. (Opens this month.)