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His top lip doesn't move when he speaks

It's off on both sides, but to me it looks more off on the deepfake side

I think that's because they used the original fake to make the deepfake. If they had used an actual actor (with a completely different face but accurate mouth movement) I think it would have been spot on.

That's been an issue for all CGI, I guess our ability to spot even the slightest imperfection in how mouths look has us well stuck in the uncanny valley

The firs comment on the video says it would be better if they had access to the original video and not just the original fake.