As a born-and-bred fan of the Dallas Cowboys — this isn't one those posts filled with gloating, promise — the Buffalo Bills have to do whatever it takes to sign, keep and play running back James Cook.

John Dahl stood over an empty red carpet, one that soon would be filled with names like Kelly and Thurman, Andre and Tasker, Russert and Fichtner. Behind him was a poster for his new film, “Four Falls ...