Peter Mullan (“I Swear”), Rebecca Lucy Taylor (“Teeth nSmiles”) and Iwan Rheon (“Game Of Thrones”) will lead director Celyn Jones’ next film “Mountain.”

Jones is known for co-directing Rebel Wilson starrer “The Almond and the Seahorse” as well as co-writing “The Vanishing,” which featured Gerard Butler, and “Set Fire to the Stars,” which saw Elijah Wood play poet John M. Brinnin.

Described as a coming of age story, “Mountain” is set in 1980s Wales where GG (played by newcomer Seth Isaac Thomas), a neglected, young boy, is searching for friendship and community. Mullan plays Bill, who lives in isolation on the mountain.

“Their lives collide by chance forming a brief but enduring connection,” reads the logline. “Proving that, even though the world can appear cruel, life is inherently good and will find a way to survive.”

The film began shooting on location in Anglesey, North Wales, at the end of June.