Trailer for David Fincher's film starring Jake Gyllenhaal,Mark Ruffalo,Robert Downey Jr.,Anthony Edwards,Brian Cox,Chloë Sevigny,Elias Koteas,Dermot Mulroney,John Terry,John Carroll Lynch,Donal Logue,Philip Baker Hall,Adam Goldberg,James LeGros,Adam Trese,Clea DuVall,Paul Schulze,Zach Grenier,John Mahon,