The problem with questions like that is that there is far too much variation between jurisdictions, and the answers will require constant maintenance as intellectual property and privacy laws change. Even in the answer pointed to, there are some huge problems, in that the laws governing usage are state laws in the US, not federal (as copyright would be). Similarly, in Canada, privacy laws and personal likeness usage rights are mostly a provincial concern.
(By the way, folks, grabbing model/property release forms online or from an office supply outlet, photo store, or what have you, without having them vetted against local law can be dangerous. Not only do things like the age of consent vary wildly, terms like "good" and "valuable" in relation to consideration can bite you on the bum. Something that can be satisfied with a nominal buck or TFP in one jurisdiction may legally necessitate a substantial payment in another.)
In any case, all of this strays dangerously close to the realm of legal advice, and despite all of the IANAL disclaimers and so forth, people relying on any advice other than a "consult a competent lawyer" boilerplate are going to be led astray, either filing claims that will eventually see them paying the other party's costs or exposing themselves to legitimate and costly lawsuits. We should stay as far away from it as possible, IMHO.