Is this a good movie? Well, if you expect some reasonable scientific accuracy or a story that is logical then hell no! If however you only seek two hours of entertaining action-adventure and a shitload of special effects, then it is a pretty good movie.
The story behind this movie is ludicrous to say the least. There are so many holes in it, so much scientific bullshit and so much illogical behaviour by everyone involved that this would be a very, very long post should I list them all.
By the way, the rest of this review might contain a spoiler or two if you have not yet seen the movie.... read the rest.