re: weightlessness is special!
The Arts Catalyst is VERY protective of their work. You rarely see any video clips on the web. This is strange because their mission is "...to promote understanding and cooperation between the arts and sciences. We seek new ways to involve artists, scientists and the wider public in a discourse about science in society...", and they have an extensive video library of zero g works, but it is not available to the public.
Some of you might be interested in this link talking about a planned movie based on the Spider Robinson book Stardance.
http://www.spiderrobinson.com/stardance.htm