You can already donate to film preservation non-profits, but again they're largely limited to restoring public domain films, and only a handful of pubic domain films are famous enough to be profitable (and I suspect meager profits at best).
The problem with film is that there aren't enough works in the public domain to sustain a film restoration business.
This leaves it up to the studios to restore the films themselves, but there's aren't a lot of pre-1950 films that can be profitably restored, so most of them sit in the corporate vaults hidden from view.
One fix might be mandating that digital copies of all pre-1950 prints be made available to the public within 10 years, or else they're turned over to the government (and hence the public domain) so that the Library of Congress can make them available.
This would give the studios a chance to purge their libraries without corroding their precious copyright, and make every film in their vault available to everyone.
It's frustrating to read about films you can never see.
The reason they prevent downloading is simply to prevent you from giving that download to someone else that hasn't paid for it, and for that reason it makes sense.
Netflix DRM has the unfortunate side-effect of restricting access to specific regions and operating systems - and those are great reasons to complain about DRM - not because you aren't also getting a download.
It obviously works great as a business model for streaming content, and is very different from renting.
Actively choosing what you watch not only make you choose your content wiser, but gives you a sense of responsibility when you find you've wasted two hours watching crap because you had to actively seek it out.
Basically it's 1000 times better than cable, but requires that you take an active part in figuring out what you want to see, which is a big plus for me.
Trailers on Netflix would be nice though, and if they wouldn't go to a stupid menu screen before the credits are over.
If the games were in the public domain, there'd be a much bigger incentive to create emulators or hardware to play them on. Anyone could make and sell their own Atari 2600 with the entire, complete game library pre-installed.