PHOTOS: The Hottest Red Carpet Looks from the 2015 SAG Awards

(Reuters)

The 26-year-old actress is wearing Christian Dior. (Associated Press)

The 38-year-old actress is wearing Giorgio Armani. (Associated Press)

The 35-year-old actress is wearing Marc Jacobs. (Associated Press)

The 54-year-old actress is wearing Monique Lhuillier. (Associated Press)

The 29-year-old actress is wearing Romona Keveza. (Associated Press)

The 31-year-old actress is wearing Elie Saab. (Reuters)

The 38-year-old actress is wearing Emanuel Ungaro. (Associated Press)

The 42-year-old actress is wearing Donna Karan. (Associated Press)

The 32-year-old model is wearing Donna Karan. (Associated Press)

The 45-year-old actress is wearing vintage John Galliano. (Associated Press)

The 48-year-old actress is wearing Giambattista Valli. (Associated Press)

The 24-year-old actress is wearing Vera Wang. (Associated Press)

The 29-year-old actress is wearing Erdem. (Associated Press)

The 54-year-old actress is wearing Givenchy. (Associated Press)