Hello I am confused a bit my copyright law, pertaining to a commercial photographers rights. 1. SInce I am the owner of the copyright, I have the right to reproduce the image and manipulate the image to my liking, right? 2. But then I need a model release to use the image for commercial gain, correct? 3. If #2 is true, what if I take a photo of a guest at a wedding, or a large group shot at a wedding and want to use it for self-promotion. I've seen large group shots of weddings and I doubt the photographer chased everyone down to get a release. 4. If #2 is true again and I am hired to take a portrait of some kind, is it standard to have photographers make clients sign mandatory releases? Thanks everyone, I'm learning a lot from all of you. Your responses have been very generous.