As a scientist, my entering expectation was that strong visual technology would overpower/diminish a probably already weak storyline (aka Titanic - I rated 3.5 out of 5). This movie had a strong storyline. The quality, 3-D glasses were not distracting. Film is engrossing; Initially, the 3-D effects; then you're quickly pulled into the alien world and become involved with it, the characters, and their trials. I left thinking this a 4 out of 5, but couldn't put the lessons of the movie out of my mind - how the movie subtly teaches how we're all part of the "World Organism". The movie has "held" me. I now give it a 5 star rating, destined to be a "Classic" for the ages! I will go back.