What is the main duty of the script supervisor during film production?

The main duty of the script supervisor during film production revolves around maintaining continuity throughout the filming process. This involves ensuring that all elements of the script are consistently executed across various takes and scenes. The script supervisor meticulously tracks details such as dialogue delivery, actor positions, wardrobe, props, and set pieces to ensure that everything aligns with what has already been filmed. This is crucial because any inconsistencies can disrupt the flow of the film and become noticeable to viewers, thereby affecting the storytelling.

The role significantly aids in the editing process, as it helps the editor maintain coherence in the narrative. By keeping precise notes and working closely with the director and cinematographer, the script supervisor facilitates a smoother production process and contributes to the overall quality of the final film.