The sci-fi horror starring Olivia Thirlby, Emile Hirsch, Rachael Taylor, Joel Kinnaman and Max Minghella is described as a 28 Days-like thriller that "follows five young people who find themselves stranded in Moscow, fighting to survive in the wake of a devastating alien attack." It was revealed that it was actually filmed in 3-D.
Check out the trailer for The Darkest Hour (via iTunes Movie Trailers) below: