The Last Samurai (2003)
In The Last Samurai, Tom Cruise plays an American military officer brought on by the Emperor of Japan to train the country's first army in modern warfare. However, Cruise's samurai armor was actually used 250 years before the time period during which the movie is set.
The Notebook (2004)
The Notebook tells a love story between Rachel McAdams, Ryan Gosling, and James Marsden. In the scene where Lon is waiting for Allie after recovering from injuries he sustained in the war, his hair goes from brown to black and back to brown.