 Hergott did not set up shots ahead of time, but rather the actors  improvised. Charlie the cinematographer had no idea what to focus  on. Hergott told him to capture whatever he would be watching if he  were standing there in real life without a camera. This added to the  realism of the movie. Instead of the shots being staged, the action  happened naturally, and Charlie was instructed to capture everything  like it was a documentary.