After gaining 30 pounds for the title role in Bridget Jones's Diary, Renée went into extreme diet and exercise mode to drop it all (and then some) for Chicago, leaving many worried over what appeared to be yo-yo dieting. "I had a panic attack with all the specialists talking about how bad this is for you long-term, putting on that much weight in short periods of time," Renée says.
Renée Zellweger: Chicago
Photo courtesy of Miramax Films
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