George Clooney in Washington

George Clooney's arrest Friday during a demonstration outside the Embassy of Sudan March 16, 2012, in Washington, capped several days of lobbying by the Oscar-winning actor. Before the demonstration, he testified on the Hill, attended the state dinner for British Prime Minister David Cameron and met with the president at the White House.

George Clooney arrives to testify on Sudan and South Sudan before the Senate Foreign Relations Committee on Capitol Hill in Washington, March 14, 2012.

George Clooney and John Prendergast, left, co-founder of the Satellite Sentinel Project, testify on Sudan and South Sudan before the Senate Foreign Relations Committee on Capitol Hill in Washington, March 14, 2012.

From left to right, John Kerry, George Clooney and Dick Lugar pose for a photo at the Senate Foreign Relations Sudan and South Sudan: Independence and Insecurity hearing at the Dirksen Senate Office Building on March 14, 2012, in Washington.

George Clooney testifies at the Senate Foreign Relations Sudan and South Sudan: Independence and Insecurity hearing at the Dirksen Senate Office Building on March 14, 2012 in Washington.

George Clooney and John Prendergast, right, co-founder of the Enough Project arrive to the Senate Foreign Relations Sudan and South Sudan: Independence and Insecurity hearing at the Dirksen Senate Office Building on March 14, 2012, in Washington.

George Clooney testifies at the Senate Foreign Relations Sudan and South Sudan: Independence and Insecurity hearing at the Dirksen Senate Office Building on March 14, 2012, in Washington.

Actor George Clooney and Senate Foreign Relations Committee Chairman Sen. John Kerry, D-Mass. greet reporters on Capitol Hill in Washington, March 14, 2012, during an interview with The Associated Press, and other news organizations. Clooney was to testify before the committee's hearing on Sudan.

Actor George Clooney and Senate Foreign Relations Committee Chairman Sen. John Kerry, D-Mass., take part in an interview with The Associated Press, and other news organizations, March 14, 2012, on Capitol Hill in Washington. Clooney was to testify before the committee's hearing on Sudan.

Actor George Clooney gestures during an interview with The Associated Press, and other news organizations, March 14, 2012, on Capitol Hill in Washington. Clooney was to testify before the Senate Foreign Relations Committee hearing on Sudan.

Actor George Clooney arrives for the State Dinner in honor of British Prime Minister David Cameron at the White House in Washington on March 14, 2012. Cameron and his wife Samantha are on a three-day official visit to the U.S.

Maria Otero, Undersecretary for Civilian Security, Democracy, and Human Rights at the U.S. State Department, and George Clooney arrives for a State Dinner in honor of British Prime Minister David Cameron at the White House on March 14, 2012, in Washington.

Actor George Clooney, left, chats with White House senior advisor Valerie Jarret during a State Dinner in honour of British Prime Minister David Cameron March 14, 2012, on the South Lawn of the White House in Washington.

Actor George Clooney, right, speaks to the media as Co-founder of Enough Project John Prendergast, left, listens March 15, 2012, at the White House in Washington. Clooney and Prendergast had meeting with President Barack Obama to discuss the current situations in Darfur, Sudan.

Actor George Clooney, left, speaks to the media March 15, 2012, at the White House in Washington. Clooney had meeting with President Barack Obama to discuss the current situations in Darfur, Sudan.

George Clooney walks towards the podium to speak to the media March 15, 2012, at the White House in Washington. Clooney had meeting with President Barack Obama to discuss the current situations in Darfur, Sudan.

George Clooney, center, shakes hands with Senior White House Correspondent Jake Tapper, right, March 15, 2012, at the White House in Washington. Clooney had meeting with President Barack Obama to discuss the current situations in Darfur, Sudan.

Actor George Clooney, right, and Co-founder of Enough Project John Prendergast, left, walk towards the podium to speak to the media March 15, 2012 at the White House in Washington.

George Clooney speaks as his journalist father Nick Clooney and President of United to End Genocide Tom Andrews listen during a protest outside the Sudanese Embassy March 16, 2012 in Washington.

Actor George Clooney and his journalist father Nick Clooney share a moment after the older Clooney spoke as U.S. Rep. Jim Moran (D-VA), left, and President of United to End Genocide Tom Andrews, right, look on during a protest outside the Sudanese Embassy March 16, 2012 in Washington.

George Clooney, center, is arrested during a demonstration outside the Embassy of Sudan March 16, 2012, in Washington. United to End Genocide, the Enough Campaign and Amnesty International held a rally to call on the United States and world leaders to stop the violence in South Sudan and prevent hundreds of thousands of people from starving.

George Clooney, center, and Rep. Jim Moran, D-Va., left, are led to a police vehicle after being arrested during a protest at the Sudan Embassy in Washington, March 16, 2012. The demonstrators are protesting the escalating humanitarian emergency in Sudan that threatens the lives of 500,000 people.

Actor George Clooney addresses the Council on Foreign Relations regarding the situation in Southern Sudan, March 13, 2012 in New York. Upon their return from South Sudan with the Enough Project, Clooney and John Prendergast discussed the situation after a year since Southern Sudan?s independence referendum.

Actor George Clooney listens to John Prendergast at the Council on Foreign Relations regarding the situation in Southern Sudan, March 13, 2012, in New York. Upon their return from South Sudan with the Enough Project, Clooney and John Prendergast discussed the situation after a year since Southern Sudan's independence referendum.

Actor George Clooney, center, speaks as John Prendergast, right, co-founder of Enough Project, and Anglican Bishop Andudu Adam Elnail, left, listen at the Council on Foreign Relations regarding the situation in Southern Sudan, March 13, 2012, in New York. Upon their return from South Sudan with the Enough Project, Clooney and John Prendergast discussed the situation after a year since Southern Sudan's independence referendum.