Get ready to duck!
They don't explain why, but...
We see Thor's father (Anthony Hopkins) strip him of his godlike powers and trusty hammer, and banish him to Earth. And from the sound of it, that's a pretty bad punishment. "Oh no, this is Earth, isn't it," he asks upon his arrival.
Fortunately, Portman is there to look after this strange new guy who literally fell out of the sky. And it can't all be bad. He may be stripped of his powers, but he hasn't lost his ability to beat up highly trained commandos...something we see him do a lot of.
Hopefully those abilities will come in handy when he takes on the giant robot blowing everything up with its death ray. (Yes, there's a giant robot that's blowing everything up with its death ray! They had those in Norse mythology, right?)
Check out the trailer and tell us what you think. Thor hits theaters May 6.