Although not up to the same historical level of Saving Private Ryan, The King's Speech or Lincoln, I believe Titanic carries a message just as strong as all three: material items don't go with us when we die. Our lives, and the people we love, are worth more than jewelry. I'm not the world's biggest James Cameron fan, but where he's got a point I absolutely agree with, especially when it's about the Titanic, I can't ignore it.
If you read Roald Dahl's book, then you'll notice Tim Burton has almost lifted every scene and line verbatim from the pages to make this incredible movie. Yes, I love the Gene Wilder version as well. But as for staying true to the story, this film wins outright.
American Beauty: Directed by Sam Mendes. This came on TV and I couldn't change the channel. I remembered seeing this in the theater and being blown away. It's still a great film even after all these years.
HARRY POTTER AND THE PHILOSOPHER'S STONE (2001): Rescued from the outrageous neglect of his aunt and uncle, a young boy with a great destiny proves his worth while attending Hogwarts School of Witchcraft and Wizardry.