It's a remake of the 1971 film Straw Dogs that starred Dustin Hoffman
http://www.imdb.com/title/tt0067800/
And here's the page for the remake
http://www.imdb.com/title/tt0999913/
It's got James Marsden in as well and he's pretty nice too, it's a pretty harrowing story but really really good and Alex is meant to be amazing in it. Not out until next September though!