Channel 4 News

Robert Downey Jr. -- Walks Out of Interview ... 'It's Getting a Little Diane Sawyer-y'

Robert Downey Jr. sat for an interview to promote "The Avengers: Age of Ultron" ... but when the reporter changed topics to Downey's distant past, the actor walked out, telling the guy he didn't sign up for a Diane Sawyer sit-down.

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