AlAan Media
Archive material can add depth to a documentary, but every clip has an owner and a set of rights. Before you use it, identify who holds the rights, which territories and media are covered, and for how long. A license that allows broadcast may not cover online clips or social promotion, so read the terms carefully.
Keep a record of every license, including the agreed fee, usage window, and credit wording. Add credits in the format the rights holder requires. This guide is general information, not legal advice, so consult a qualified lawyer for contracts or disputed material.