 Principal photography began in August 2011 in Louisiana . On November 22 , 2011 , a crew member died in an accident at a New Orleans warehouse that was serving as a soundstage for the production . The incident happened while crew members were changing out a set . The battle on the Himalayas was shot in a New Orleans warehouse previously used to build NASA rockets , that had been fitted with a green screen wall at a very steep angle with a lot of rigging above to swing the stunt people through . 
