One of the surprises for me in watching "Theremin: An Electronic Odyssey" was Brian Wilson's appearance. True, "Good Vibrations" is the best known piece of music that uses a Theremin. Nevertheless, I didn't expect to see a very animated, very passionate, and very talkative B.W. in this documentary about the life of the instrument's inventor. Brian is notoriously monosyllabic in interviews, but you would never know it from this footage. He is verbose, his arms wave around, and he cracks jokes. Most importantly in regard to Leon Theremin, Brian credits the use of the cello with the Theremin for the success of "Good Vibrations."