You guys are operating under the assumption that Marvel digitally replaces their heads.
Actually, I was not under this assumption, and I did forget to mention Michael Douglas in Antman … they did an amazing job on him too.
For me, I would have preferred to see Tarkin in a hologram version or more shadowed to better compensate for the CGI. As it is now he stands out like a sore thumb. I understand Leia being difficult too. They could have maybe used a profile view or shadowed the scene so it wasn’t so glaring. With all that they can create from nothing there had to be better alternatives is all I’m saying.