George Clooney
Hollywood actor George Clooney leaves the Post Code Lottery Offices in Edinburgh,Scotland, Nov. 12, 2015.
George Clooney
George Clooney poses on the red carpet as he arrives for the U.K. premiere of the film "The Monuments Men" in central London on Feb. 11, 2014.
George Clooney
George Clooney and his Lebanon-born British fiancee Amal Alamuddin take a taxiboat upon their arrival in Venice on Sept. 26, 2014, on the eve of their wedding.
George Clooney
George Clooney arrives with Amal Alamuddin at the Celebrity Fight Night to promote the Andrea Bocelli Foundation on Sept. 7, 2014, in Florence.
George Clooney
George Clooney attends voting ceremonies during the first day of voting for the independence referendum in the southern Sudanese city of Juba, Jan. 9, 2011.
George Clooney
Actor George Clooney and Stacy Kiebler arrive at the 84th Annual Academy Awards held on Feb. 26, 2012, in Hollywood, Calif. Clooney, who was nominated for Best Actor for his role in "The Descendants," lost the statue to Jean Dujardin.
George Clooney
George Clooney earned a best actor Oscar nod for his role in the 2011 movie, "The Descendants." He portrays a land baron who tries to re-connect with his two daughters after his wife suffers a boating accident. Clooney took home the best actor award at the 2012 Golden Globes.
George Clooney
Actor George Clooney and girlfriend Elisabetta Canalis attend the Robert F. Kennedy Center for Justice and Human Rights 2010 Ripple of Hope Awards Dinner at Pier Sixty on Wednesday, Nov. 17, 2010 in New York. (AP Photo/Evan Agostini)
George Clooney
President Barack Obama discusses the situation in Sudan with actor George Clooney during a meeting outside the Oval Office, Oct. 12, 2010, at the White House in Washington.
George Clooney
George Clooney holds the Bob Hope Humanitarian Award in the press room during the 62nd Primetime Emmy Awards on Sunday, Aug. 29, 2010, in Los Angeles.
George Clooney
George Clooney and Elisabetta Canalis arrives during the 82nd Academy Awards Sunday, March 7, 2010, in the Hollywood section of Los Angeles.
George Clooney
George Clooney is shown here as Ryan Bingham in 2009's "Up in the Air." Clooney was nominated for a Best Actor Oscar for his work in the film.
George Clooney
From left, Casey Afflect, George Clooney and Javier Bardem attend the Academy of Motion Picture Arts and Sciences' Oscar Nominees Luncheon in Beverly Hills, Calif., Feb. 4, 2008.
George Clooney
Actor and new United Nations Messenger of Peace George Clooney speaks to the media about his recent trip to Darfur at United Nations headquarters, Thursday, Jan. 31, 2008.
George Clooney
In this photo released by the United Nations and African Mission in Darfur (UNAMID), actor George Clooney, center, who has been designated as U.N. messenger of peace by U.N. Secretary General Ban Ki-Moon, visits the Zamzam refugee camp in North Darfur, Sudan, in late January 2008.
George Clooney
George Clooney, nominated for best director for "Good Night, and Good Luck," and best supporting actor for "Syriana," arrives for the 25th annual nominees luncheon hosted by the Academy of Motion Picture Arts and Sciences in Beverly Hills, Calif., Feb. 13, 2006.
George Clooney
George Clooney poses with the award he won for Best Supporting Actor for his work in "Syriana," at the 63rd Annual Golden Globe Awards, Jan. 16, 2006, in Beverly Hills, Calif.
George Clooney
Clooney speaks on stage at the Live 8 Edinburgh concert at Murrayfield Stadium, July 6, 2005, in Edinburgh, Scotland. The free gig, labelled Edinburgh 50,000 - The Final Push, was planned to coincide with the G8 summit to raise awareness for making poverty history.
George Clooney
Clooney receives The Los Angeles Film Festival's First Annual "Spirit of Independence" Award in June 2005.
George Clooney
Clooney greets Japanese fans upon his arrival at the New Tokyo International Airport in Narita City, January 2005. Clooney, along with co-star Brad Pitt, arrived to promote their film "Ocean's Twelve."
George Clooney
Clooney's waxwork model is unveiled at Madame Tussauds, Dec. 15, 2004, in London.
George Clooney
"Ocean's 12" stars George Clooney, Elliot Gould, Brad Pitt, Catherine Zeta-Jones and Matt Damon pose for cameras at the premiere of their film at Grauman's Chinese Theatre in Hollywood, Calif., Dec. 8, 2004.
George Clooney
Clooney, model Lisa Snowden and Clooney's mother, Nina Warren, arrive at the premiere of the film "Ocean's 12" at Grauman's Chinese Theatre, Dec. 8, 2004, in Hollywood, Calif.
George Clooney
Clooney, at right, and Matt Damon hug as they meet at the premiere of their film, "Ocean's 11," in Los Angeles, Dec. 5, 2001. The film, directed by Steven Soderbergh, is a remake of the 1960 heist movie that starred the Rat Pack.
George Clooney
Clooney arrives at the premiere of his film "The Perfect Storm" in Los Angeles, June 26, 2000. The movie, also starring Mark Wahlberg and Diane Lane, was based on Sebastian Junger's book about fishermen who are at sea when three weather fronts collide to produce the most fierce storm in modern history.
George Clooney
Clooney and then-girlfriend Celine Balitran attend the 55th Annual Golden Globe Awards in Los Angeles, Jan. 18, 1997. He was nominated as best actor in the drama category for television series for his role in "ER." He lost to his co-star, Anthony Edwards.
George Clooney
George Clooney poses with model Elle Macpherson at the 1997 premiere of the movie "Batman and Robin."
George Clooney
George Clooney attends the 1997 premiere of the movie "Batman and Robin" (in which he played the Caped Crusader) with then-girlfriend Celine Balitran.