If someone will have a significant role in front of the camera, you will need to get their permission (in the form of a media release) to film them or take photos of them. A “significant role” means a role where you clearly see the person’s face, or where they are distinct from a crowd. For example, you’ll need a release for your main actors who drive the storyline. You may not need releases for people who are just walking down the street at a distance from the camera. Just to be safe, if you’re in doubt about who needs a release or not, get a release!
Since part of this project involves sharing student work, it’s important to make sure ALL people appearing in front of the camera have given their permission (or their guardian has, in the case of minors) to be featured.