The newest copyright laws state that the media copyright belongs to the camera man unless there is an agreement to the contrary, from the moment it is created.
You already have copyright, it does not have to necessarily be officially recorded, under the new rules.
You have the right to collect.
if you tried to charge him and they would not pay, and you do not have an agreement or conditions stated prior to the work that all work belongs to the company, then yes.
Make sure you review any agreements you might have to make sure that langague is not in there.