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Marissa Mayer, Jennifer Lawrence, and Francis Lawrence

Marissa Mayer moderates as Jennifer Lawrence and Francis Lawrence answer "The Hunger Games: Catching Fire" fan questions.

Jennifer Lawrence Talks Back to Fans from Yahoo HQ

Jennifer Lawrence brought a little Hollywood glamor to Silicon Valley, California, on Wednesday. The 23-year-old Oscar winner stopped by Yahoo headquarters along with "The Hunger Games: Catching Fire" director, Francis Lawrence, to chat with Yahoo CEO Marissa Mayer. A fiery fan Tumblr Chat ensued.