It's no definitive masterpiece but it's damn close.

Amateur movie with Big budget

Excellent and certainly provocative... If nothing else, the film is a real conversation starter.

Just intense enough to provide a much-needed diversion, just lightweight enough to make you forget about it soon after it’s over. It’s not exactly “good,” per se, but it does what it sets out to do in terms of putting us on edge, which makes it … successful?