Whats even more funny, they are unacceptable, yet already hotlinked to other sites.

Ok they seem to have same name, but they were 1800x1200 I cropped to correct a/r.
The first ones with same name came from a rando website!
These are actual movie stills d/l from the studios website!

Since when does tmdb support behind the scene pics?

Behind the scene pictures are fine. It's in the Image Bible: https://www.themoviedb.org/bible/image/59f758339251416e71000065#59f758369251416e71000067

Thanks have since found that.
S/B downvoted?
Would love to see the same for b/w images, esp profile.

@DaMan said:

Thanks have since found that.
S/B downvoted?

Yes. They are "tolerated" and it is somewhat encouraged for users to downvote them:

"Behind the scenes pictures are tolerated, but they should not be used as the primary picture. Feel free to downvote them." (a quote taken from a section in the contribution bible)

I've downvoted it myself.