The process was created for and was used in this feature film production:
https://www.youtube.com/watch?v=HBf9-_KyFJk That is my work, in combination with a VFX team. The original actor replacement process as implemented by the production team did not convince. I was a production analysis brought in, and created the extra embellishments to make the illusion convincing. The work was unique, I did some research and learned it was patent capable. Discussing with John Hughes, President of the Studio, he gave me the technology to pursue as I wished.
This is significantly higher quality than today's Deep Fakes, and as such it requires actual VFX artists, as well as a non-trivial expense. (Of course, that expense is less than any return from using the process - that's the whole point.)