According to Variety, Robert Downey Jr., Ray Wise, Frank Langella, Jeff Daniels and Tate Donovan have joined the cast of George Clooney's sophomore directorial outing, Good Night. And Good Luck.

Also in the cast are David Strathairn, Patricia Clarkson and Clooney. Principal photography has begun on the pic, the story of broadcaster Edward R. Murrow and his on-air confrontations with Sen. Joseph McCarthy.

Clooney wrote the film with producer Grant Heslov.

Executive producers are Steven Soderbergh, Ben Cosgrove, Jennifer Fox, Todd Wagner, Mark Cuban, Marc Butan and Jeff Skoll.