The film is nice, but the extras shows that the film is significantly different from the true story. The town and the mine really helped the kids all along. As a kid, I tried myself to make rockets and they were not flying high at all. I did not make a good batch of black powder, after my good batch went in flame... The footages they have of their rockets are quite impressive. The film added some drama to keep interest, otherwise, it would have been the documentary in extras. The documentary is great and depicts a lot of things in the film happened as shown. The film is a pass if you watch the extra documentary.