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Kate Winslet's 'Miracle Dress' On 'Good Morning America' (VIDEO)

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When Kate Winslet wore a curve-hugging black-and-white Stella McCartney number to the Venice Film Festival earlier this month, we couldn't help but admire her svelte figure.

Turns out we weren't alone. This morning, "Good Morning America" pronounced the formfitting sheath a "fashion miracle," touting the dress's virtues -- namely, creating the illusion of a narrow waist, elongating the torso and making the wearer appear roughly two sizes smaller.

While it's been seen before, on Penelope Cruz, Liv Tyler and others, People's Kate Dimmock notes, "Usually when someone wears a dress no one else wants to wear it. This time around, people are willing to go there, because it's that irresistible."

While the frock's $1,600 price tag is a tad beyond our budget, 'GMA' suggests wallet-friendly alternatives found at Topshop, Forever 21 and Bebe.

Watch the segment below: