Before the Screen Actor’s Guild Awards red carpet opens on Sunday, RadarOnline.com is taking you on a fashion flashback through all the wardrobe winners and sinners of the annual show.

In 2011, Natalie Portman showed off her baby bump in a white hot Azzaro gown and over $2 million worth of Tiffany & Co., while her Black Swan costar Mila Kunis stunned in Alexander McQueen.

PHOTOS: The Best, Worst & Wackiest SAG Fashions Over The Years

Sandra Bullock was the big winner a la mode in 2010, scoring the top acting honors of the evening in a beautifully beaded Alexander McQueen gown, while supporting thespian Diane Kruger looked magnificent in a mustard-colored Jason Wu stunner. Fashion disasters included Anna Paquin, in a nightmarish Alexander McQueen mini and Meryl Streep, who decided to sport sunglasses with her powerfully patterned Balenciaga gown.

PHOTOS: The Best, Worst & Wackiest Fashions Of The 2011 SAG Awards

And who can forget Kate Hudson in 2008, looking like a bohemian goddess in a strapless Balmain masterpiece? Or Emily Blunt, slinking down the 2009 red carpet in a Pamella Roland silver floorlength?

PHOTOS: The Best & Worst Fashions Of The 2010 SAG Awards

Anne Hathaway slipped up in a blue and black lingerie look in 2006, while sexy Sarah Jessica Parker went too Carrie Bradshaw the year before, wearing a mess of a polka dot dress.

Who else rocked and shocked on the red carpet of the SAG Awards over the years?  Click here to find out.