Saw the film today. It was one of the most intense films I have EVER seen. From start to finish it was non-stop tention. I think the last 30 minutes was so gut-wrenching and knowing how it all ends does not help at all. I think it is a must see film for the simple fact that it reminds us what people went through on that day. However, if you lost someone in 9/11 I would really think hard about seeing it. The phone calls, and the crying and the suspense that builds makes you feel like your there, the whole time I wanted to get out of my seat and do something about it. It really was a great film and I think it commemorates what happened on that day rather than hollywoods it.