A great resource on the internet, The Internet Archives, has complete copies of this film free for download or streaming, as well as thousands of others, including a number of African American titles.

I've spent hours browsing the holdings of the Internet Archives, one of the truly great examples of how the internet should function. Check out their music holdings, classic cartoons, educational lectures, indie films, etc. All are either in public domain or are provided by artists without restriction for non-commercial use.