This movie was one of the strangest movies I've ever seen which was the basis of its appeal for me, but it was truly one of the best movies I've ever seen as well.
The emotions and personalities and events it the film were so intense that nothing in the world could have broken my attention to it. The movie says so much about the ways people think and interact based on their past.
The acting was surprisingly believable for the content of the movie. Joseph Gordon-Levitt is such a versatile actor and this movie really showed it.
It was excellent.