Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Thrilling Hero

With "Hero" and "House of Flying Daggers" director Zhang Yimou has jettisoned to the forefront of filmmakers working today. There is no denying that Yimou has a distinctively strong visual style. That said, if it's all style and no substance, so what? "Hero" is blessed with a good narrative. Essentially, the theme of the film is what defines a hero. The answers that Yimou offers are both surprising and enlightening. Strong cast that includes Jet Li and Ziyi Zhang. Essential viewing.