Christopher McQuarrie made his crew obsess over Jean-Pierre Melville's Le Samouraï — the quiet precision, the icy professionalism, the trench-coat silhouette of the assassin. Ilsa Faust is Alain Delon's samurai remade as a woman. The Vienna opera sequence pulls from Bernardo Bertolucci's visual sophistication. McQuarrie documented this in the DVD commentary, understanding that spycraft requires the aesthetic of European cool. Both films are on Criterion Channel.