The Grey is a 2011 survival thriller film co-written, produced and directed by Joe Carnahan, and starring Liam Neeson, Frank Grillo, Dermot Mulroney, Dallas Roberts, Joe Anderson, Nonso Anozie, and James Badge Dale. It is based on the short story "Ghost Walker" by Ian MacKenzie Jeffers, who also co-wrote the screenplay with Carnahan. The story...