This movie was quite a satisfying 'isolation / paranoia / suspense / gore' movie! It's not a classic but it is very well done and should meet (and in some cases exceed) viewers' expectations. Inevitable comparisons to John Carpenter's 'The Thing' will arise (and indeed the initial setup is similar to 'The Thing'), but hopefully people won't attack this film because of that, as that wouldn't be entirely fair. The movie plays out differently than 'The Thing' and some of the sequences are truly unnerving in their own right. There is a major 'squirm' factor that permeates the movie with the parasites really 'getting under your skin' during some of the more disturbing infestation shots. It remains sufficiently suspenseful and unpredictable all the way to the satisfying conclusion. Val Kilmer is great as the obsessed scientist but he isn't in the movie very much, however this isn't a hinderance to the movie because the rest of the cast are quite capable themselves. The 'making of' documentary is entertaining and reveals many scenes that were apparently more difficult to shoot than they appeared in the film. Overall it was exactly the kind of movie I was expecting. Not a classic but very good and entertaining.