Question: What is the nationality of the "Michael Clayton" star known for dressing more individually at the 2008 Oscars?

Context paragraphs:
Michael Clayton (film): Michael Clayton is a 2007 American legal thriller film written and directed by Tony Gilroy and starring George Clooney, Tom Wilkinson, Tilda Swinton, and Sydney Pollack.  The film chronicles the attempts by attorney Michael Clayton to cope with a colleague's apparent mental breakdown and the corruption and intrigue surrounding a major client of his law firm being sued in a class action case over the effects of toxic agrochemicals.

Austin Williams: Austin Williams (born November 13, 1996) is an American soap opera actor.  In 2005, Austin was cast in the film "The Good Shepherd", which starred Matt Damon, as the young version of Damon's character Edward Wilson.  Here he also displayed his vast musical talents, including metal guitar and classical piano compositions.  In October 2007, he was cast in the role of Shane Morasco on "One Life to Live", a role that continued until January 2012.  In 2008, he was nominated for a Young Artist Award for "Best Performance in a Feature Film - Young Actor Age Ten or Younger" for his role as Henry Clayton in the 2007 film "Michael Clayton".

At Night (film): At Night (original title: Om natten) is a 2007 Danish short film.  It was nominated for Best Live Action Short Film at the 2008 Oscars.

Jennifer Fox (film producer): Jennifer Fox is an American film producer.  From 2001 to 2007, she was president of Section Eight Productions; before that she was Vice President of Production at Universal Pictures.  Fox was nominated for an Oscar in 2008 for her production work in "Michael Clayton".

Tony Gilroy: Anthony Joseph Gilroy (born September 11, 1956) is an American screenwriter and filmmaker.  He wrote the screenplays for the first four films of the "Bourne" series starring Matt Damon, among other successful films, and directed the fourth film of the franchise.  He was nominated for Academy Awards for his direction and script for "Michael Clayton", starring George Clooney.  Gilroy wrote and directed "Duplicity", starring Julia Roberts and Clive Owen, and co-wrote "Rogue One: A Star Wars Story".

Tilda Swinton: Katherine Matilda Swinton (born 5 November 1960) is a British actress, model, and artist.  She is known for her roles in both arthouse and independent films to large-scale Hollywood productions.  She won the Academy Award for Best Supporting Actress and the BAFTA Award for Best Actress in a Supporting Role for her performance as Karen Crowder in the 2007 film "Michael Clayton".  She also won the BAFTA Scotland Award as Best Actress for the 2003 film "Young Adam", and has received three nominations for a Golden Globe Award.

Section Eight Productions: Section Eight Productions, or just Section Eight, was a production company founded in 2000 by film director Steven Soderbergh and actor and director George Clooney.  It produced the critical hits "Far From Heaven", "Insomnia", "Syriana", "A Scanner Darkly" and "Michael Clayton", as well as Clooney-directed films "Confessions of a Dangerous Mind" and "Good Night, and Good Luck".  In 2005, "Syriana" and "Good Night, and Good Luck" picked up eight Oscars nominations between them.  With Soderbergh citing a desire to focus on directing, and Clooney forming production company Smoke House Pictures with Grant Heslov, the two decided to shut down Section Eight at the end of 2006.

Red carpet fashion in 2008: Red carpet fashion in 2008 was affected by the 2007–2008 Writers Guild of America strike, which led to the cancellation of the Golden Globes that year.  The Oscars were dominated by uncontroversial designs in solid colours which led to criticism of "safe" choices, and drew attention to those who dressed more individually, such as Tilda Swinton and Marion Cotillard.

Michael Clayton (soundtrack): Michael Clayton: Original Motion Picture Soundtrack is the original soundtrack of the 2007 drama film, "Michael Clayton", starring George Clooney, Tom Wilkinson, and Tilda Swinton.  The original score was composed by James Newton Howard.  The album was released on September 25, 2007 on the Varèse Sarabande label.

Stuart Michael Thomas: Stuart Michael Thomas (born November 17, 1970, in Los Angeles) is an American music composer, producer and arranger for film and television.  He has been a credited contributor to dozens of films including Michael Clayton, Snow White & the Huntsman, The Dark Knight and Iron Man 3 as well as TV films such as High Noon, Northern Lights, and Angels Fall.  He is briefly interviewed in Peter Jackson's King Kong Production Diaries.

Supporting paragraphs: Red carpet fashion in 2008 Tilda Swinton
Answer: British