SHELLEY actress Lena Headey is starring alongside Sean Bean in a new epic medieval fantasy series.

The former Shelley High School pupil will play Cersei Lannister in HBO’s much-anticipated fantasy adaptation of the Game of Thrones.

Based on George R R Martin’s popular fantasy book series A Song of Fire and Ice, the story is set in a mythical kingdom where an epic battle for power is taking place.

Lena joined Sean and cast members for the shoot and the effects-driven drama was shot on location in Northern Ireland and Malta.

In an interview on HBO’s website, Lena said of her character: “She is quite tricky, layered and power mad, smart and political. She has a hard time trusting anyone.

“There is a definite sense with Cersei that if it will further her game of power she’ll get rid of anyone, it doesn’t matter.”