This Tom Ford dress is a more fashion-forward look than the usual Jennifer Aniston fare. The enlarged houndstooth pattern and leather trim are texturally interesting and she even managed to wear real shoes (instead of the barely-there sandals she favors.)

Pink and red is bad enough but Malin Ackerman compounds the problem by wearing this dress two days after Valentine's Day. She looks like a half-priced box of chocolates.

Cate Blanchett is a risk-taker and we appreciate that, but this dress seems to be a misstep. It looks like it was cobbled together from scraps of better gowns.

The strapless design and warm charcoal plaid really showcase Evan Rachel Wood's slender shoulders and glowing skin. The t-strap shoe is a flattering, leg-lengthening style.

This Christian Dior gown would be unbearably twee on almost anyone else. But for some reason, Michelle Williams is able to carry off dresses that fall into that category over and over again. This is no exception.

This draped goddess gown fits Gabrielle Union like a glove. Stunning.

Rebecca Romijn looks good, right? Or does she look like she left the house wearing just her slip? We're on the fence.

Brown, rusty red and black is a challenging color combination to begin with so why add a neon green belt? And clashing cherry red satin shoes? Jennifer Nettles should have been sent home to try again.

The total visibility of Caroline Manzo's white lace support bra is only part of the problem here. Feel free to enumerate the rest in the comments. We can't go on.

Rachel Zoe's dress is cool but at least a size too big — it's especially droopy in the shoulders and bust. And those giant platform pumps look like they'll snap her tiny ankles like twigs if she actually tries to walk anywhere.

Though perhaps a tad overdressed for a garden variety movie premiere, Vanessa Hudgens is still radiant in this sunny yellow gown. We like the middle-parted, wavy hair, too.

Rachel McAdams's patterned skirt paired with a simple T-shirt is a unique approach. The varying shades of blue and the middle-parted wavy hair (are we sensing a trend here?) are both appealing.

The one-armed dress thing is just so tired. That goes double for red lace. Ashley Tisdale could really use some style counseling.

Cate Blanchett's Alexander McQueen dress is quite dramatic, and, as such, would have benefited from a less casual approach to hair and shoes.

Miranda Kerr's shiny satin gown and sleek wave are 100 percent glamour goddess.

Though the neckline is flattering, the rest of Radha Mitchell's dress really needs an overhaul. It's droopy and shapeless in the top and middle and then oddly tapered at the ankles.

Keira Knightley has gotten everything exactly right here with this Burberry Prorsum gown. The cut and color of the gown, accessories, hair — we really can't quibble with any of it.

We don't often love Katherine Heigl's red carpet choices, but this gray gown with an interesting nude underlay grabbed our attention. The fit is impeccable and she's gone with a softer (and prettier) hair and makeup style than we're used to seeing.

Rooney Mara attends a more casual press event in a zipped, ruffled top and cigarette pants. While it's in keeping with the edgy fashion look she's been sporting, we feel like we want to like this one more than we actually do.

The flame-like pattern at the hem only serves to emphasize the awkward length of Ashley Greene's dress.

Renee Olstead's ensemble looks like something she acquired last minute at Forever 21.

The green sequins blanketing the torso and skirt of Reese Witherspoon's dress are just way too Ghost of Christmas Past.

Meagan Good wears this sexy red dress right — minimally accessorized, simple black pumps and a slick of red lipstick.

Naomi Watts' look is simple and chic enough, but it's all just a little dull. More dramatic shoes and an updo are recommended.

Elise Neal's cropped python-print blazer and skinny pants are cute and well-fitting, but the look is a bit casual. Adding a statement necklace and replacing the bulky "day" bag with a small clutch would dress up this look.