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Troy is the title of Garrett Hedlund's 2004 war film. The film is an epic adventure based on Homer's Iliad and tells the story of the Trojan War. Hedlund plays the role of Patroclus, the close friend and companion of Achilles. The film also stars Brad Pitt as Achilles, Eric Bana as Hector, and Diane Kruger as Helen.