If a promoter asks a wrestler to work a show for them then the performance and use of the persona for that show is classed as the promoters interlectual property, therefore by agreeing to work a show your ageeing to any form of distrubution of your work.
It doesn't mean anything of the sort, unless the promoter gives you your persona, _script_s the events and your matches at which point you just become an actor. The promoter may THINK thats what it means, but the legal issues of intellectual property must be adressed, IE talked about/agreed on in a contract of some sort, before he can legally make such a claim. Most wrestlers (myself included) aren't so anal about this subject, but it is a very real possiblility that some are...
The law on this is very clear and ignorance of the law is no-excuse.