I was a little concerned initially about the 3 hour running length. Once the movie started, i was part of a different, beautiful, and stunning world. I was sorry it ended so soon. For me, this is on the short list of the greatest movies ever-and the 3D technology was a giant leap in special effects. I'd go right back today and see it again if I didn;t have to work. See this! The story itself is very moving; and the acting was surprisingly good! I do think it's a little scary for youger children. A family next to us ended up leaving early on, because the kids were afraid. The 3D is very realistic.