Need help in finding the original video (UL4 render)

Hi, it’s my first post here. It’s not the best post ever, I’m sorry, I’m not a creator, but I need help nevertheless.

I have a contract with this studio which included these pictures as an example of “minimal detail level” in their work. We have a strong suspicion that these pictures are taken from the some kind of a benchmark test for Unreal Engine 4 (engine studio claimed to use). If you know the source of this animation, please let me know, I appreciate any any help since we’re almost in court now.

Thanks in advance,