02/24/2013 10:40 EST | Updated 02/24/2013 11:22 EST

Jessica Chastain Reveals Cleavage At Chanel Pre-Oscars Dinner (PHOTO)

Best actress? Maybe. Best dressed? Well, you can be the judge of that.

Jessica Chastain stepped out in an ivory Chanel dress at the fashion house's pre-Oscars dinner Saturday night. And while the Zero Dark Thirty actress looked glowing, her outfit was a bit of a head-scratcher. Its plunging neckline is quite daring, but its pleats and sleeves border on matronly.

This dress isn't exactly flattering on Chastain, who doesn't have the best track record when it comes to award show fashion. Who can forget her ill-fitting Golden Globes dress earlier this year? Nevertheless, we hope she wows on the red carpet tonight -- and kicks butt at the awards ceremony to boot.

jessica chastain oscar dress

Check out this week's worst-dressed celebrities

Worst-Dressed Celebrities Of The Week