he exited his hot office , descended the steps and staked his claim on a shaded part of the broken concrete pavement outside the megalopolitan casting office ( where , as was the case on that day , arden sometimes worked as a script editing temp or assisted the second assistant director in transport logistics , for example , the task of getting more than fifty background actors from a sound stage located on one side of mumbai to an on-site , outdoor set on the other side of the city , before the cameraman lost the natural light and the shadows became too long ) .