When Aliens invade Russia, five young US tourists find themselves trapped and on the offensive in The Darkest Hour, director Chris Gorak's latest thriller for 20th Century Fox. The first trailer for The Darkest Hour has been released, offering a look at stars Emile Hirsch, Olivia Thirlby, Rachael Taylor, Joel Kinnaman, and Max "Eyebrows" Minghella in action. Check it our below.