AceShowbiz -

"Mary Shelley's Monster" has found its leading lady in Sophie Turner. The 18-year-old actress who plays Sansa Stark on HBO's "Game of Thrones" is tapped to play the famous British novelist Mary Shelley known for her Gothic story "Frankenstein".

The feature film is the dramatization of the late author's life story. It tracks the young writer as she writes her seminal novel and is drawn into a Faustian bargain with her own "monster" of an alter ego, who offers literary fame at a desperate personal cost.

Turner will share screen with Jeremy Irvine ("War Horse", "Stonewall") who is cast as Mary's husband, poet Percy Shelley. Coky Giedroyc ("The Killing", "Penny Dreadful") serves behind the lens, and Deborah Baxtrom writes the script.

Producer Rose Ganguzza said, "The story of the most extraordinary 19th century teenage heroine told in a visceral, sexy, contemporary way... Our film is not a period drama. It is a story of youth that transcends time, a gothic romance, a love triangle that involves a dark passenger and we are tremendously excited to have such an exciting cast onboard this wonderful project."