Horribly inaccurate.
To the author/creator: I've taken it that you've seen the movie Elephant, no? It's blantly obvious that you modeled this work over that movie. Furthermore, that movie was based VERY loosely on Columbine. The way you've marketed this film is in a way that "This is Columbine. This is what happened. This is the truth." And it only takes a quick glance at the other reviews here to see that people actually believe that. Unbelievable.
Autumn Tree has so many inaccuracies, I really find it difficult to watch.
I will gladly go into detail and correct your mistakes in an effort to stop you from furthering contributing to the lies and misinformation that surround the Columbine Massacre. But before I do, I'd like to see if there's interest, so I don't wate my time.