For all the hype it got I was expecting a lot more!

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.

Pretty good movie overall. First half was nothing special but it got better as it went along.

A film with more than the usual spoiler issues. Talking about it in any detail feels akin to handing you a gift-wrapped present and saying, "I hope you like it -- It's a thriller about a diabolical secret experiment."