"Sisters with Transistors" is a superb film. Before I watched it, the only one of the many extraordinary women presented therein that I knew of was Delia Derbyshire.

I had no idea that the soundtrack to The Forbidden Planet (which may very well be the greatest Science Fiction film ever made), was by Louis and Bebe Barron on equipment they pretty much entirely built themselves. Today, we plug in a laptop, back then you were a true pioneer.