The premiere of the romantic comedy will take place on February 10.

Reese, 46, wore a navy suit by Brandon Maxwell from the spring-summer 2023 collection, teaming it with blue heeled pumps.

The actress complemented the bow with a gold ornament on her neck, light manicure and wore several gold rings.

She also put on make-up and let her long blonde hair down.

Reese Witherspoon and Ashton Kutcher / Photo: Associated Press

Reese Witherspoon and Ashton Kutcher / Photo: Associated Press

Her co-star Ashton Kutcher, 44, wore a white polo shirt, a denim jacket and brown pants with arrows, while wearing dark shoes with slightly scuffed toes.

The pair fooled around on the track, Ashton crouching all the time so Reese didn't look so short against him or he wasn't so tall next to her.

Reese Witherspoon and Ashton Kutcher / Photo: Associated Press

Reese Witherspoon and Ashton Kutcher / Photo: Associated Press

Reese Witherspoon, Wesley Kimmel and Ashton Kutcher / Photo: Associated Press

Reese Witherspoon and Ashton Kutcher / Photo: Associated Press

In the film, Witherspoon and Kutcher play good friends - Debbie and Peter, who exchange houses for one week and have the opportunity to look into each other's lives and get the key to love.

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