What if other products were sold the way video games are sold, would we find those terms acceptable?
This series of films is 100% free and clear, using assets and tools which have no licensing constraints on its author.
More info / downloads available at: http://z-studios.com/films/ad-absurdum/
This film was made with Moviestorm (www.moviestorm.co.uk) and a few other tools. You can currently download the Moviestorm Beta 2 at their website... it's FREE.