Using unauthorized footage in your video content may raise copyright issues, but there are strategies that can help you avoid legal risks to a certain extent. These strategies often rely on the principle of fair use, but it is important to note that this is not a complete guarantee against copyright infringement. Here are some ways: 1. **Fair Use**: Fair use is a legal concept that allows the use of copyrighted material without permission in certain circumstances. It mainly applies to purposes such as commentary, criticism, education, research, and news reporting. Make sure your video is value-added, non-commercial, or "transformative" from the original work. 2. **Length of clip**: Try to use as few clips as possible and only include the parts that are needed. Using shorter clips can sometimes be considered fair use. 3. **Altering the content**: Adding new meaning or context to the original clip through editing, such as adding narration, changing the order, adding special effects, etc., thereby increasing the uniqueness of the creation. 4. **Commentary and criticism**: If you are analyzing, commenting on, or criticizing the content, this use is more likely to be considered fair use. 5. **Educational Purposes**: Using clips in educational contexts, such as for academic discussions or classroom teaching, may sometimes meet the fair use criteria. 6. **Non-commercial Use**: If the video does not involve profit, it usually faces less risk than commercial use, but it is not absolute. 7. **Use of Public Domain Content**: Choose to use film and television content that has entered the public domain and is no longer protected by copyright. 8. **Get Permission**: The safest way is to obtain permission to use the content. This can be done by contacting the copyright holder. 9. **Use of Open Copyright/Licensed Content**: Use content under licenses such as Creative Commons, which usually have clear terms of use. It is important to emphasize that the definition of fair use varies from country to country, and specific cases may also depend on the court's decision. If you plan to use content that may be protected by copyright in your video, it is very helpful to consult professional legal counsel.