You have only 30 seconds in a TV commercial. If you grab attention in the first frame with a visual surprise, you stand a better chance of holding the viewer. People screen out a lot of commercials because they open with something dull. When you advertise fire-extinguishers, open with the fire.
David OgilvyThe creative process requires more than reason. Most original thinking isn't even verbal. It requires 'a groping experimentation with ideas, governed by intuitive hunches and inspired by the unconscious.' The majority of business men are incapable of original thinking because they are unable to escape from the tyranny of reason. Their imaginations are blocked.
David Ogilvy