Good concept, poorly executed.

It was OK. I don't see why everyone loves it so much. It wasn't very smart or deep or well-directed.

Ok... Let's be honest. It cannot be the best movie but is quite enjoyable. The movie has the potential to develop a great plot for future movies

While it is a pity that the story wasn't told with more visual finesse, this is trivial compared to our real-world problems. It takes a good movie to put that into perspective.