Kate Winslet really loves this Stella McCartney sheath dress

Whenever you see a celebrity wearing the same thing at multiple events, you just know it's one of their favorite pieces--because, honestly, no celebrity ever has to wear the same thing twice! But Kate Winslet must really love this Stella McCartney Octavia sheath dress, because she's now been spotted wearing it in multiple colors on the red carpet!

This dress, from Stella McCartney's Fall 2011 collection, has actually been dubbed the "miracle dress" by many celebrities for the side panels' ability to contour the body. Good Morning America even claimed it can make you look up to two sizes smaller!

Kate first wore the black and white version to her premiere of Mildred Pierce in Venice back in September. Then, just this week, she was spotted in the red and black version at the premiere of Carnage.

We personally prefer Kate in the red and black version--we think it shows off her curves better and the vibrant hue is gorgeously flattering against her skin tone. But what do you think?