FWIW:
Being the enthusiastic fact checker I hopped over to Seedance’s website and it only took 10 seconds to find green screen footage of two stuntmen performing the same fight choreography we see in the Cruise vs Pitt scene. Seedance had used the green screen footage for a different demo
...
So the ball is in your court Seedance .... Was the input really just a 2 line prompt or was it actually 2 lines, green screen video footage, and face references too? The evidence appears to show that stuntmen were filmed from several angles, that a clip had to be generated for every angle, and then finally all clips were stitched together for marketing.