Larry Lessig is one the foremost authorities on copyright and fair use. Lessig is also one of the founders of Creative Commons. In this TED Talk from March of 2007 Lessig explains how some copyright laws can limit creativity. I found it a bit tough to get into the talk at first, but it really picks up around the four minute mark. Lessig closes with a strong statement about kids and digital (re)creativity, “we can’t make our kids passive again.”
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Here are some related resources that may be of interest to you:
Video Introduction to Understanding Fair Use
Copyright for Educators
The Story of the Obama “Hope” Poster