Ah why would it matter it's not like they would get monitised, your practically on Google's doorstep begging for donations next to failed academia PhD holders btchn and ranting (majority do, even smart people can be dumb)the lists by no means exhaustive.
But if I had to guess:
1 strip the movie down to PNG format, restitch it, may take hours, but if the resolution is low like 720p or 1080 it maybe shorter.
2 embedd a water mark in the meta data.
3 lie about the tag and thumbnail, you can add two tracks one playing over the movie and one under.
4 add a filter over the movie that displays random dots in each PNG as invisible but you have to do that for 500.000/million png's and unloading a 2 hour movie as PNG could skyrocket to 200gig.
Converting mp4 to PNG is child's play, it's just 7 lines of code, or your favourite editor, however it could crash