[retrac]

Copyright in Canada for films is 75 years. So, Disney works before 1948 are public domain here. I can't seem to actually find any of them, though. I am not a lawyer, but I'm pretty sure I'd be within my legal rights to take e.g. an original print of Bambi as released in 1942, scan it, and make it available online for Canadians. I'm also pretty sure I'd get sued anyway.

Getting a copy of the original is also something of a challenge for this practically. (VHS and DVD releases are probably subject to a new copyright, remastering is often copyrightable.) If all extant accessible versions of a work are under copyright, then the work being in the public domain is only theoretical.

[vlovich123]

AFAIK you don’t need an original print. All versions that aren’t materially different lack copyright and are free to distribute.

[Sunspark]

I would say caution is advised. I have seen it argued that one trick to prevent expiry is to re-record the audio with a new orchestra thus causing it to become a new production.

[kingbirdy]

A new score would certainly qualify as "materially different", to GPs point

[Sunspark]

Yes and no. You can still record the original music again, but with a brand new orchestra. Is it materially different then? From a legal standpoint? From an individual standpoint?

[zarzavat]

The answer is yes. There is copyright for the score and copyright for the performance. New performance, new copyright.