Conversation so far:
How was Good Night, and Good Luck produced?
The CBS offices and studios seen in the movie were all sets on a soundstage.
Was  the production successful?
The film ultimately grossed more than $54 million worldwide.
Who was involved in the production of this film?
Dallas Mavericks owner Mark Cuban and former eBay president Jeff Skoll invested money in the project as executive producers.

Question: What about the cast and other important members?
Self-contained rewrite: Who was the cast and other important members of Good Night, and Good Luck?