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Good Night, and Good Luck is a 2005 American historical drama film directed by George Clooney and starring Clooney, David Strathairn, Jeff Daniels, and Robert Downey Jr. The film chronicles the real-life story of Edward R. Murrow, a journalist who played a central role in the United States Senate's censure of Senator Joseph McCarthy during the McCarthyism era. Helberg played the role of Joseph McCarthy's assistant, Roy Cohn.