Notes:

serious Central Casting (giving up their image to be able to use it in any medium without permission.) star wars actors sign the same kind of contract in the 70s it took years to make money from derivatives of their images. it's called a scam
contract in which the various business clauses will be specified: use of images, licenses sold, terms of payment, etc. It will always be useful to specify in this contract, for information purposes, that the photographer is the first owner of the copyright of the images produced.