Jessica Chastain has been on a roll lately; having come out in numerous critically acclaimed movies and now starring in a highly-rated Broadway show, she's now lighting up the style scene to the point of being voted (by readers) as the best-dressed celebrity last week. Is there anything this exceptional actress can't do?

With a hot new movie and an acclaimed Broadway show, Jessica Chastain has a lot to celebrate this season. And now she has another accolade: she’s this week’s best dressed star!

More than 16,000 of you gave Chastain’s simple, elegant ensemble — a peplum dress and Casadei sandals, worn to a Zero Dark Thirty screening in N.Y.C. — some love, propelling her into the top spot on our best dressed list. Chastain finished her look with natural makeup, minimal jewels and a flawless blowout. Read More