Death Race 2000 - owned by UCA
D.O.A - owned by Waterfall Entertainment
Nosferatu - owned by Eureka
White Zombie - owned by Classic Entertainment
Night of the Living Dead - owned by Oracle
To Kill a Mocking Bird - owned by Universal
Master With Cracked Fingers - owned by Prism (one of the worst distrbuters I've had to work with)
Fists of Fury - the US title for 'The Big Boss' - owned by Medusa (one of the best distributers I've ever worked with)
The Little Shop of Horrors - recently bought by Waterfall Entertainment
Rumble in Hong Kong - owned by M.I.A (yuck)
The above mostly include ownership and distribution of all film editions worldwide, but some are only for Europe. If you want me to look into it further for you, I can. I've tried to give the name of the parent distributer in most cases, but the distribution arm should be enough info.
I'm pretty sure '36 Crazy Fists' is not public domain, but it was a horrific film and began life as a pirate video anyway, so no need to sweat there.
I'm not entirely sure about the Matrix shorts, as I know Warner own video distribution rights but I beleive some episodes may have been made freely available, so they might be ok.
Hope I've been of some assistance! I'd like to help the site in any way I can and will submit videos to help beef the content up if you would like?