I purchased copyrights to unpublished videos from someone. Would him "leaking" them constitute "publication" of said work?

Publication is more nuanced. It does not mean that the content cannot be released or shown. It means that if you publish, promote, display, perform...

Is your content registered in Canada? You can enforce copyrights in other jurisdictions, but you have to follow their copyright law. At present, in...

Yes, there are in fact entities that will do this for people. It just has to be drafted properly and remember that this does not mean you can give...

If original author of works to which he fully transferred rights to me "leaked" these works. What cause of action may be used?

I assume what you are saying is that you had a written non-disclosure agreement that was breached? And did this breach actually cause any damage?...

What kind of protection does filing for copyright registration to the US Copyright Office +3 months after publication add?

Any creative expression will be covered by copyright law automatically. Then you register the work with the US Copyright Office so to perfect your...

You can be sued in your own country for copyright infringement and especially so if it is a member of the Berne Convention, which most countries...

"Fan art" is really a euphemism for moderately tolerated copyright infringement. Whether a license is required here in this case depends. I'm...

You are free to resell any lawfully purchased item and you are not required to purchase from an authorized source, but doing so ensures the best...

As noted, plagiarism is really an academic concept. In law, the issue is copyright infringement. Being this is an assignment for school not in the...

You need to have a proper analysis done to make sure all the facts are well understood. But it is likely that while you may have a contract...