Agree that watching it on DVD would be less intense for children. Although I don't think this movie will be nearly as good on a small screen. A lot of the action is very fast and takes place at night. (Maybe my eyesight is not as good as it used to be, though)
It won't be as good on small screen, which is also why kids should be able to handle it. I'd like to see it at least once more before it leaves the theaters.