I thought it was a particularly effective sci-fi horror film, that relied on its masterful sense of unpredictability to move along a story that was very well set up and paced. The acting was all around solid, but the unexpected use of the actors is what made them shine through. Overall, it was a very exciting experience, and a surprisingly great film altogether. It's definitely one of my favorite films of the year so far.

Great movie. Ryan Reynolds was really good

This was an amazing movie the actors out did themselves in this film. This film had us gripping our seats in anticipation as to what was to come. Amazing visual effects the way Calvin bent the Doc's fingers when it was antagonized disturbingly real like. All in all I would give this a 10 out of 10 great film.

Outstanding Film! Great suspense and excellent cast made this a truly great movie experience.