07/10/2010 05:12 am ET Updated May 25, 2011

Jake Gyllenhaal Is Afraid Of Ostriches

Jake Gyllenhaal worked hard to embody the fearless hero Prince Dastan in Prince of Persia: The Sands of Time -- getting bulked up and mastering sword fighting and the acrobatic art of parkour.

One thing he couldn't conquer? His fear of ostriches.

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