Not only is Patricia Arquette's gray dress matronly, but the fit is completely unflattering and the fabric looks extremely cheap.

Marissa Jaret Winokur looks great as blonde! Her fire engine-red dress works well on her figure, and the thin black belt breaks up the look perfectly.

Nicole Kidman's green dress has a vintage, Mad Men feel to it that we're really digging. Loving the hair color, too.

Even though Kaley Cuoco's simple spaghetti strap dress looks adorable on her, her hideous mummy-wrap shoes outweigh any positives.

We have to give Jessica Biel credit for making a sheer dress look elegant, but long red dresses on a red carpet don't offer enough contrast.

Was the person who designed the silhouette of Anna Kendrick's strapless black-and-blue minidress drunk at the time? It just makes her boobs look lopsided. And the yellow shoes? No.

While the color of Mira Sorvino's dress looks great on her, the shape and fit are not attractive. Anyone else having flashbacks of middle school?

America Ferrera is a knockout in this flawlessly fitted purple dress.

Look at Michael Cera trying to bring back boat shoes with no socks. The preppy thing is really working for him.

In a black sequined minidress and flesh-toned heels, Angelina Jolie looks ridiculously amazing on the red carpet — as always.

Normally, this baggy, draped look is hard to pull off, but Garcelle Beauvais-Nilon looks quite elegant in this white, one-shouldered number

Is Kate Walsh wearing a backpack or are those black stripes part of her silver blouse? Either way, the whole outfit is just ugly.

Eva Longoria tried to tap into her inner Batman with a dated black dress with sheer, poufy shoulders.

Is it just us, or does Jada Pinkett Smith's gold minidress look like it's been slathered with a a layer of Vaseline?

Cheryl Burke's strapless white minidress is cute, but it seems like it's slipping off of her.

A simple bright-blue gown with a draped neckline is stunning on Lindsey Vonn.

Jane Krakowski's lilac dress is cute, but what's with the cape hanging off her shoulder?

January Jones wears sophisticated, high-waisted pants and a black ruffled blouse with just the right amount of texture.

If a giant pile of fabric gathered on one shoulder wasn't bad enough, Brittany Snow managed to make her look even worse with a hideous pair of printed pants and belt.

Kristen Bell's blue-and-white stonewashed dress is a fun '80s callback. The white mesh neckline, however, is not.

The stiff silhouette and dreary color combination of Kyra Sedgwick's severe dress is not flattering.

Kim Kardashian's bright cobalt top is perfectly paired with a black skirt and a high-waisted belt.

Between the unflattering fit and the dated, emerald leopard print, Serena Williams' minidress comes across more trashy than sexy.

We love the varying shades of gray of Elise Neal's dress, but the fit around the bust and neckline could be better.

Venus Williams' ultra low-cut, super-short minidress is a bit much to be wearing out in public.

These gray slacks, paired with a black jacket and a casual blue button-down, are really working for Leonardo DiCaprio.

The long, flowing tiers and colorful fabric of Blake Lively's dress are fun and flirty.

Jessica Alba's thin ruby-red belt and matching lipstick look great with her white bell-shaped minidress — But her black sheer shoes don't belong.

Leighton Meester's poorly fitting black leather dress is just horrendous. The shoes and necklace are unfortunate as well.

Well, look at Helen Mirren in her hot pink heels! The pop of color goes great with her blue patterned dress and matching cardigan.

Although the silhouette of Elizabeth Hurley's gown is flattering, the sloppy hem and neckline destroy the overall look.

We commend Mia Wasikowska for thinking out of the box, but her sheer layered dress looks like a 1940s-style foundation garment over which you would wear a gown.

The interesting shape of Julianne Moore's black-and-white dress rescues it from being boring, and the low-cut neckline shows just enough skin .

Freida Pinto is glowing in an architectural, folded green gown. A simple black belt accentuates her tiny waistline.

Although Vanessa Williams' strapless white dress looks like it could slip off at any moment, the wonderful texture created by the tiers is just beautiful.

We usually hate on Kristen Stewart and her obsession with black. But this one-sleeved minidress works for her. And she doesn't look miserable for a change.

Kelly Ripa's dress would still be ugly even if it wasn't wrinkled.

Ana Ortiz is far too cute to wear such a blah blue dress with boring shoes.

Even though AnnaLynne McCord's nude minidress couldn't be any tighter, the silhouette is actually quite sophisticated and elegant.

Twilight's Ashley Greene looks about 10 years older than she is in a too-professional matching pencil skirt, blouse and scarf. Perhaps she has a job interview after the movie premiere?

Fergie isn't shy about showing off cleavage in an extremely form-fitting black-and-white minidress. The weird tail action is unfortunate.

Keke Palmer's silver minidress looks like crumpled tin foil.

The black corset pattern on the bodice of Taraji P. Henson's striped silver dress is beautiful as well as unique.

Twin sisters Tia and Tamera Mowry hit it out of the park with sexy, youthful dresses.