Hal Rubenstein's '100 Unforgettable Dresses'

InStyle Fashion Director and renowned fashion expert Hal Rubenstein breaks down star fashion in his book, "100 Unforgettable Dresses." Included are Halle Berry's red carpet looks and Kate Middleton's stunning Alexander McQueen wedding gown.

"Extra's" Maria Menounos talked with Rubenstein at The Grove about the book and how he selected the dresses. Watch!

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