Robert Downey Jr. Tweets a Pic From the Set of "Avengers: Age of Ultron"

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Robert Downey Jr. Says, "Talk to me, Twitter."

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After finally joining Twitter, the Iron Man star generated more than 55,000 followers after his first tweet.

Robert Downey Sexy

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Robert Downey Sexy
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Here's a sample of a tumblr devoted to adapting Pin-Up art with everyone's favorite Avenger, Pin Up RDJ