Game of Thrones star Kit Harington makes the transition from Westeros to World War I in the new trailer for Testament of Youth. This adaptation of Vera Brittain's memoir has already been released in the U.K., with Sony Pictures Classics releasing the drama domestically on June 5. The actor plays Roland Leighton, who falls for Vera Brittain (Alicia Vikander), until the great war tears their romance apart.

Intelligent and free-spirited Vera overcomes the narrow-mindedness of her conservative parents, winning a scholarship to Oxford. Entranced by her brother's dashing friend Roland, who shares her literary aspirations, she plunges into an intoxicating romance. Blooming, in love and on the cusp of fulfilling her ambitions, Vera's dreams are brutally shattered by the onset of war. When Roland and her brother ship out to the front, she abandons the cloistered environs of university life and volunteers as a nurse. Immediately confronted with the pitiless reality of the war's victims, her life is irrevocably changed as she loses, one-by-one, the young men she held so dear.

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Hayley Atwell, Dominic West, Emily Watson, Miranda Richardson, Colin Morgan, Anna Chancellor and Taron Egerton round out the supporting cast of director James Kent's period drama. Are you interested in seeing Kit Harington as a World War I soldier on the big screen? Let us know what you think, and stay tuned for more on Testament of Youth.