Lily James has become a mountain-climbing 'addict' since filming the Cliffhanger reboot

Lily James has become a mountain-climbing "addict" since filming the Cliffhanger reboot.

The Cinderella star, 36, leads the cast of a new version of Sylvester Stallone's 1993 action movie alongside Pierce Brosnan and the actress has confessed she had the "had the time of [her] life" working on the film and she's thrown herself into the sport of climbing.

She told The Hollywood Reporter: "Oh my God, I had the time of my life. It was so hard. I did five hours of climbing a day for many weeks.

"I was on mountains nonstop. I fell completely in love with it. It’s the most mind-body-soul activity.

"And I’m a [mountain-climbing] addict now. I did all my own climbing [in the film], and I got real strong. I was just pounding press-ups between every take."

The film is due for release next year and Lily can't wait to share it with audiences.

She added: "I’m really proud of Cliffhanger. I’m so excited. We’re in the edit and getting it ready, and I’m super hopeful.

"It is such a cool reimagining, and while it’s really unexpected at times, it keeps all the gripping glory of the original, I hope."