Be aware that this review might gives some spoilers.
I love this movie for several reasons. The first one is the reminding of the Wooden Knee massacre of December 29, 1980, were something like 150 Lakota American Indians man, women and even children were literally slaughtered by the US army, which is giving so much credibility to the main character played by Tom Cruise, a man destroyed by his guilt for having participated to the killing of those defenceless people. This reminder is also a link from the past and the present of the story where he is offered the invaluable chance of regaining his honor and healing from his wounds. The second reason why I enjoyed this movie so much is the effort from the producers in their attempt to create a story as true as possible of the real destiny and faith of the samurais, which is, as well, adding so much to the credibility of the story itself.
This said, the picture and the landscapes are marvelous and the way they used to live in their country is presented in such a way that you can fell the serenity and the peace that surround them even in this particular trouble time of their evolution under the pressure of our modern world.
It is a movie that touches the consciousness. It is also a movie of war and peace, of hate and love, and the story of a dying world that will never come back.