>> I agree that they should not have put “no derivatives” on the movie. But I also understand the concern that a lot of film makers have about maintaining the integrity of their work.

I think it’s a habit reaction that can definitely change over time. Once you see what others are capable of adding to what you do [you can promote those you like over those you don’t, and in most cases the changes will not overwhelm your efforts] and what others allow you to use by the creation of their own ND works, you start to loosen your grip.

The totality of what others can do vastly exceeds what the most talented individual can do working alone (hey, hollywood blockbusters surely aren’t the product of a single person.. though neither was this video), so the question becomes do you want to have an isolated product that will be recognized as a great “small” effort or do you want to be part of a great blockbuster and in the process (as a major player) accrue free credit in being associated with the more “blockbuster” work?

A person’s contribution does not disappear from history and can always be preserved on a website.

I think the CC people need to create Source Code licenses, but we aren’t yet at a time when most people create things where they have significant source code they want to share. [Here is an exception: http://www.sitasingstheblues.com/ though the animation source does currently require closed source software.]