Question: Are Brian G. Hutton and Gordon Curran Stewart both from America?

Context paragraphs:
Zee and Co.: Zee and Co, also known as X, Y and Zee and Zee and Company, is a 1972 British film released by Columbia Pictures.  It was directed by Brian G. Hutton, and was based upon a novel by Edna O'Brien.

Where Eagles Dare: Where Eagles Dare is a 1968 British World War II action film from Metro-Goldwyn-Mayer that stars Richard Burton, Clint Eastwood, Mary Ure, and Ingrid Pitt.  It was directed by Brian G. Hutton and shot on location in Austria and Bavaria.  Alistair MacLean wrote the novel of the same name and the screenplay at the same time.  It was his first screenplay; both film and book became commercial successes.

The Pad and How to Use It: The Pad and How to Use It is a 1966 comedy film directed by Brian G. Hutton.  It was based on a one-act play by Peter Shaffer.

Night Watch (1973 film): Night Watch is a 1973 British suspense-thriller film directed by Brian G. Hutton.

S/2004 S 17: S/2004 S 17 is a natural satellite of Saturn.  Its discovery was announced by Scott S. Sheppard, David C. Jewitt, Jan Kleyna, and Brian G. Marsden on May 4, 2005 from observations taken between December 13, 2004 and March 5, 2005.

Kelly's Heroes: Kelly's Heroes is a 1970 war comedy film directed by Brian G. Hutton about a group of World War II American soldiers who go AWOL to rob a bank behind enemy lines.  The film stars Clint Eastwood, Telly Savalas, Don Rickles, Carroll O'Connor, and Donald Sutherland, with secondary roles played by Harry Dean Stanton, Gavin MacLeod, and Stuart Margolin.  The screenplay was written by British film and television writer Troy Kennedy Martin.  The film was a US-Yugoslav co-production, filmed mainly in the Croat village of Vižinada on the Istria peninsula.

Brian G. Hutton: Brian Geoffrey Hutton (January 1, 1935 – August 19, 2014) was an American actor and film director whose most notable credits are for the action films "Where Eagles Dare" (1968) and "Kelly's Heroes" (1970).

Wild Seed (film): Wild Seed is a 1965 film directed by Brian G. Hutton.  The movie was shot in black and white and featured two young actors, Michael Parks in his first role and Celia Kaye who was also a new upcoming actress.

Sol Madrid: Sol Madrid is a 1968 film directed by Brian G. Hutton and filmed in Acapulco.  It was released in the UK as The Heroin Gang.

Gordon Curran Stewart: Gordon Curran Stewart (July 22, 1939 – November 26, 2014) was an American speechwriter, academic, businessman and publisher.

Supporting paragraphs: Brian G. Hutton Gordon Curran Stewart
Answer: yes