Pre-production is the planning and preparation phase that precedes principal photography or generation, during which all the creative, logistical, and technical groundwork is laid for the production that follows. It is the first of the three major production phases and encompasses everything from initial concept development through to the moment the camera rolls or generation begins.

Pre-production for traditional film and video includes script development and refinement, storyboarding and shot planning, casting, location scouting and selection, production design and set construction, costume and prop preparation, crew assembly, scheduling, budgeting, and technical preparation of all equipment and systems required for the shoot. For visual effects and animation productions, pre-production extends to concept art development, asset design and approval, technical pipeline planning, and pre-visualization of complex sequences. The thoroughness of pre-production planning directly affects the efficiency and quality of the production phase - well-prepared productions move faster, waste fewer resources, and produce more predictable results than those that attempt to solve problems on the day they arise.

For AI video generation projects, pre-production thinking means developing a clear creative brief, building a reference and mood board, writing a generation shot list that plans the clips needed, deciding on visual style and consistency parameters, and preparing any reference images or trained models that will be used throughout the project. Investing time in pre-production before beginning generation produces more coherent, intentional output and prevents the unfocused exploratory generation that can consume significant time and resources without building toward a defined creative goal.