What is the nationality of the actor who plays central character in Knight of Cups ? 
English
Title: Knight of Cups (film)
Passage: Knight of Cups is a 2015 American experimental drama film written and directed by Terrence Malick and produced by Nicolas Gonda, Sarah Green and Ken Kao.  The film features an ensemble cast, starring Christian Bale as the central character.
Title: Amir Damar Koku
Passage: Amir Damer Koku (born 8 December 1979 in Khartoum, Sudan) is a Sudanese footballer who plays central defender.
Title: Christian Bale
Passage: Christian Charles Philip Bale (born 30 January 1974) is an English actor.  He has starred both in blockbuster films and smaller projects from independent producers and art houses.
Christian Bale Knight of Cups (film)