Film making is akin to cooking with a number of ingredients going into it to make a savoury dish. An assistant director is like the sous-chef of the kitchen. An AD brings method to madness. It is an apprenticeship in film making.He has to see the progress of the production schedule.He arranges logistics, and prepares daily call sheets. He checks cast and crew, and maintains order on the sets. The job description varies. Some ADs are involved in pre-production and shoot. Some are involved  in the whole creative process from the idea to its release as a film. An Ad has to read the Director’s mind correctly. He has to make things happen. He has to match the director’s vision and the producer’s budget. An AD keeps running around on the set, and acts as a troubleshooter. An AD becomes the first AD, and then a full-fledged director. It is a stepping stone to direct a film one day.