The Oscar-winning star of The Deer Hunter will be joining the film which stars Spacey as a workaholic businessman who suffers an accident that leaves him trapped in the body of a cat. Walken will play Felix Grant, a mystical pet shop owner who Spacey turns to for help.

http://www.theguardian.com/film/2015/apr/01/christopher-walken-joins-kevin-spacey-for-man-trapped-in-body-of-a-cat-movie