Here's something I've wanted to see for a very long time - it's from Humberto Mauro's 1937 film
"O Descrobrimento do Brasil":
There's a second part out there on YouTube: http://www.youtube.com/watch?v=IJmJ0UKQSFA&feature=related.
Unfortunately, though, no DVD or VHS available, or not that I could track down on the web. This is superb music, a very interesting subject, and an interesting film overall.