When image material of depicted individuals is used for commercial purposes, the image material can only be used if the depicted individuals have given their consent for this with a ‘model release’ agreement. This is an agreement between e.g. a film producer and an extra or between a photographer/videographer and a model, in which the depicted individual gives consent for the photographs or recordings and declares that he/she waives all portrait rights. You should ensure that the person who is supervising video or photo shoots always has enough model release forms, also allowing for unexpected depicted individuals.
The term ‘depicted individuals’ refers to people who are both identifiable and prominent in the image. If you have any doubt about whether an image can be used because of people in the background, please ask here for advice.