in the preparatory phase of documentary filmmaking, one must embrace the process of evaluation with both grace and diligence. should one find a crucial resource to be regrettably unavailable, it is wise to not hastily dismiss this as a setback. instead, consider it a serendipitous opportunity to go back to the start, to rethink, refine, and perhaps discover alternative avenues that could enrich your narrative even more. this approach ensures your journey remains not only constructive but also remarkably enlightening.