okay, i noticed everytime the new trailer (french) is up the authors claimed about the video rights and stuff but isn't normally when 당신 tape it 'your video', so why do they keep doing that :(

I don't understand lawyers and all their rules.

But you've got to understand that it is footage owned 의해 them, whether someone else records it 또는 not. I can't give 당신 a good reason for them wanting to 삭제 it, but obviously it's a marketing strategy. The 음악 companies do it all the time, even if only 5 초 of their song is used in a video, they still have the rights to get a 유튜브 administrator to take it down.

My only guess as to why they would 삭제 the trailer is to get 당신 so hyped up (without any spoiler footage 또는 extra scenes) that 당신 wanna see NM even 더 많이 than 당신 did before (meaning another 팬 buying tickets, equalling 더 많이 money). It's very stupid when 당신 think about it, but obviously it works when 당신 look at it from a business angle, 또는 else they wouldn't be doing it.
Do I agree with their methods? No. Do I think they're greedy jerks? Yes. Anyways, there's nothing 당신 can do except watch the vids before someone flags them and they get deleted :/