Bernard Giraudeau, pictured, plays the lead character Pierre in Tiger's Empire, a two-part movie being shot in Cambodia. This scene - a flashback to trench fighting in France - was actually filmed amid pyrotechnic explosions behind the Royal Railways of Phnom Penh May 4. Tiger's Empire is set in colonial Vietnam before World War II. The French TV drama follows the story of Pierre, a Frenchman who begins a new life in Vietnam after shooting an officer during World War I. Ten weeks of shooting in Kep, Kampot and Phnom Penh will wrap up May 6.