The first of two dueling 'White House under attack' thrillers has finally dropped its trailer. Olympus Has Fallen stars Gerard Butler as a disgraced Presidential guard who becomes the country's last hope when the Commander in Chief is kidnapped by a ruthless gang of terrorists. Will he fare better than Channing Tatum in White House Down, which has the same storyline? Watch as Mike Banning attempts to save the free world alongside Morgan Freeman, Dylan McDermott, and Aaron Eckhart. We also have your first look at the latest poster, which makes the proclamation, "We are never stronger than when we are tested."