Here in Norway filming or photographing in public space is in most cases perfectly legal. It's publishing it that's restricted. You walking randomly in the background of a wide street shot you have to accept, but if you're the main focus of the video it can't be published without your approval.
Unless it has some kind of "allmenn interesse", aka "general interest", where it's better for society that it's published vs your right for privacy. For instance if you're a public figure doing something bad in public and getting video taped, you can't stop that from getting out by not "approving" it.