Clever, believable, and super fun to watch. It totally has replay value.

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

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."

It's easily one of the freshest, sharpest and most enjoyable films of this year.