It's not great by any means, but it's a pretty good movie that didn't leave me filled with regret for investing time in it.

This movie was so-so. It had it's moments, but wasn't the greatest.

While it doesn't offer any answers, it both thrills and makes you think.

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?