The main character, Sergeant Dunne, sees action with the 10th Battalion and is wounded and sent to Calgary on light duties as a recruiter's assistant. While there, he becomes involved with a nurse of half-German origin. Her brother is sent to France by an unscrupulous recruiter, and Sergeant Dunne rejoins the 10th Battalion in the field in time for the Third Battle of Ypres (Passchendaele) where he pledges to look out for the nurse's young brother who is also in the war.

http://www.imdb.com/title/tt1092082/
Wouldn't mind seeing this at the cinema here.