Question: When filming a documentary you always film people in the backgrounds... on the streets, on a school, at the market... are those hundreds of people crossing the frame a problem as long as they will never consent to the camera?
Technically, anyone who can be seen (clearly) in your documentary needs to give you their permission in writing using a "talent release form". If not, you would need to blur them out. However, I suggest you simply use some common sense. If you are filming a highly controversial and negative film and show people that represents them in a negative way, they are not going to like that and they could sue you. But if they are shown in a very vague way as part of a neutral or positive frame of reference where they are not easily recognizable, then you should be okay.
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Legal, Consent and Copyright Issues
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