The Retreat trailer asks: If the world ends while you're on vacation, what do you do?Meredith Woerner9/07/11 9:30am67EditPromoteDismissUndismissHideGo to permalink You're alone with your honey on a deserted island. No phones, no TV, no internet, no anything. You find a crazed man who says while you were on your vacation, the world ended. Do you believe him? This is the premise for Cillian Murphy's thriller, The Retreat. Watch the trailer now.