While posing on the blue carpet, Phillippe debuted her chic new bob while wearing a black Valentino frock with red sequin hearts and ruffles, and Stella McCartney peep-toe pumps. Her freshly-cut tresses were sleek and parted to the side and her makeup consisted of a natural eye shadow and a hot pink pout.
Witherspoon looked equally as stunning in a powder blue Elie Saab long-sleeve dress with pearl detailing along the hemline. She accessorized the ensemble with silver Christian Louboutin heels, sapphire earrings and completed the look with her blonde locks slightly tousled and natural makeup.
Prior to arriving to the premiere, the Big Little Lies star shared a video of her and her daughter leaving their hotel.