Taron Egerton cast alongside Charlize Theron in Apex

Taron Egerton is to star alongside Charlize Theron in 'Apex'.

The 35-year-old actor has joined the cast of the Netflix thriller that is being directed by Baltasar Kormakur.

Details about the movie are scarce but the script tells the story of a rock climber and adrenaline junkie (Theron) who discovers that nature isn't the only dangerous element out to get her when she goes on an expedition in the wild.

Egerton will play the role of a psychopath hunting down his human prey.

Jeremy Robbins has written the script which was picked up by Netflix before Theron and Kormakur boarded the project.

Charlize also serves as a producer on the film along with Dawn Olmstead, Beth Kono and AJ Dix for their newly-created Secret Menu banner.

Taron previously took on the part of music legend Sir Elton John in the biopic 'Rocketman' and explained how getting to work at close quarters with director Dexter Fletcher inspired him to evolve in his career by taking on responsibility behind the camera.

In an interview with Screen Rant, the 'Kingsman' actor explained: "When (I did) 'Rocketman', because of the musical elements of it, I had been involved with lots of elements of the storytelling that weren't just about the acting.

"I had a close relationship with the director – it wasn't our first project – so I'd been popping into the edit to see how things were going. And I'd enjoyed those conversations; I'd enjoyed being in the studio and learning about how the music was going to fit into the film and all the rest of it."

Egerton added: "By the time this came around, I knew that I was interested in filmmaking conversations as well as acting ones. So, I just asked them if I could be a producer, and if they would welcome my input in that way. And they, very surprisingly and kindly, said yes. That's how it happened to me."