Reese Witherspoon: 'Mud' Screens at Sundance Film Festival!

Reese Witherspoon rocks Adidas kicks while heading out for a workout at a local gym on Saturday (January 19) in Santa Monica, Calif.

After her workout, the 36-year-old actress was seen cooling off with a Gatorade towel and different tennis shoes.

PHOTOS: Check out the latest pics of Reese Witherspoon

Earlier in the week, Reese was spotted looking dressy while grabbing lunch at Sugarfish Sushi in Brentwood.

Reese‘s new film Mud is currently screening at the 2013 Sundance Film Festival.

10+ pictures inside of Reese Witherspoon working out on the weekend…