I loved it!!!

Good movie. Reminds you at times of Hunt for Red October, but overall holds your attention and worth the viewing. If you're a fan of Gerard Butler you'll enjoy him in this role. Doesn't really do a lot of physical stuff (he's basically at the command center of a sub) but he gives it his all.

It was GREAT!! Really didn't expect the suspense that it had, and really captivated the ENTIRE crowd! Very good story-line given our most recent eventful relationship with Russia. I am a military child so I definitely loved ALL of the military comradery!! Overall very excellent movie!!

A gripping, suspense-filled thriller that will keep the audience on the edge of its seat in anticipation of what happens next!