"Cabin in the Woods" is an upcoming sci-fi horror film produced and co-written by Joss Whedon, and directed by Drew Goddard. The movie was originally scheduled to be released nearly two years ago. MGM dropped it due to financial dificulties, and Lionsgate picked up the film earlier this year. What's cool about this is it means we get to see pre-"Thor" Chris Hemsworth.
After Earth looks kind of cool, but it's directed by M. Knight Shyamalan, so it will likely be massively disappointing. On the plus side, a new Shyamalan movie means it's time to play "Guess the Twist!" What do you think it will be?
My guess is Shyamalan will "borrow" from older, better sci-fi and this will actually be the story of how humans colonized pre-historic Earth, making the title of the movie almost completely meaningless. What a twist!