Jessica Chastain in McQueen Pictures at 2013 SAG Awards

Jessica Chastain arrived with a smile at today's SAG Awards in LA. She wore Alexander McQueen, and finished off the look with Harry Winston jewels. McQueen is a go-to designer for Jessica, since it was also her pick for the 2012 Oscars.

It's fair to say 2013's been good to Jessica so far — she picked up the best actress in a drama award at the Golden Globes for Zero Dark Thirty, had her latest release, the horror film Mama, top the US box office in its first week of release, and has continued to appear in her Broadway play The Heiress. She's up for outstanding performance by an actress in a leading role for Zero Dark Thirty today as well, against Rust And Bone's Marion Cotillard, Silver Linings Playbook's Jennifer Lawrence, Hitchcock's Helen Mirren and The Impossible's Naomi Watts.

Before the winners are announced, let us know what you think of the red carpet turnout in all of our SAG Awards fashion and beauty polls!