A brilliant film that helped define a genre

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."

Although I seem to have had higher expectations than I thought, the movie is super entertaining.

A great movie, one of the best of this year. There was a bit of confusion at one point in the plot, but nothing serious.