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 is an exhilarating, distressing, funny and profound film, with one of the more memorable film scores in years,

This is a dark and sometimes deeply uncomfortable drama

The movie's not perfect, but it sticks the landing of its message. It was engaging - thrilling at times - and I personally thought it was a great time.