No actors were used in this motivational video for Weight Watchers...and the camera work is tremendous...various lighting scenarios from indoors to outdoors, underwater, moving down the street while recording...all with people who have benefitted from the program!
1) Copyrights are assigned to a work when it is complete. You don't necessarily need to see the little copyright symbol © for something to be copyrighted. All footage on YouTube® is owned by the people who made the video -- i.e. the videographer or producer-- and it is automatically copyrighted.