Finally, a trailer for Transcendence that explains what this artificial intelligence thriller is all about. And apparently the machines are mad!

Wally Pfister (long-time cinematographer for Chris Nolan) is launching his directorial debut with a whole lotta blood. This first real look at the movie Transcendence, starring Johnny Depp, explains what happened to get Depp's brain into the machine. Then things (as they so often do) go horribly wrong. It actually looks pretty thrilling and very action-packed. Fingers crossed for this one, people.

Transcendence will open in theaters on April 18th.