'Man On A Ledge' Challenges Sam Worthington's Fear Of Heights: I Thought I Would 'Burst Into Tears'; Actor Reveals 'Avatar' Sequel Plans

","art_url":"http://news.yahoo.com/man-ledge-challenges-sam-worthingtons-fear-heights-thought-200152388.html","art_desc":"From Yahoo! News:

He battled greedy environmental enemies in

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