It's worth watching to see what happens to Stark and everyone else that was in the first film. One can watch this movie at any time of the day. It would be best to watch the first film to know what happened. There are some things that just wont make sense if you haven't seen the first film yet. Children can watch this movie pretty much at any age. But please parents make sure that your children can watch this type of action pack movie. This movie is at least 8 out of 10 stars. There is a lot of action within the movie. To me this movie is on that list of movies that can be watched multiple times within the year or even years. I'm going to be watching this movie plus all the other Marvel movies in a marathon.