Marilyn Monroe would be proud!

Michelle Williams looked red hot in a classic lace Valentino gown paired with Roger Vivier “Cage” sandals, a Lanvin clutch, and Fred Leighton jewels, as she stepped onto the red carpet at the 18th annual SAG Awards, on Sunday.

The actress is nominated for Outstanding Performance by a Female Actor in a Leading Role for her work in My Week With Marilyn, but she lost out to Viola Davis for her role in The Help, at tonight's awards show.

Williams was honored with a Golden Globe this year for her captivating transformation as Marilyn Monroe, so there's still a chance for Oscar gold!