Yes whatever, this film might be "factually incorrect" but you really shouldn't let that ruin it. The special effects are excellent, the acting is great from tommy lee jones and it is full of suspense. However, after watching this, you wont remember any of that. You will be too busy coming to terms with the fact that you just watched a man attempt to jump off a train and end up melting in lava (ah, lovely!). Yes, that is an amazing scene that will not only leave you in awe (if you can bare to look) but will give you nightmares for months and is gauranteed to give you a phobia of trains.
This film has been compared a lot to Dante's Peak. I've ben trying to decide which one i prefer but they're both just as good as each other. Go on, just buy this, it's cheap enough (oh, unless a scientist!)