Never noticed anything about Ewan’s weight in TPM personally. And the “Noooo” has been essentially solved by other editors by using the Japanese or Russian dubs for that moment (which are more wordless cries of anguish than anything).
Never seen the Russian/ Japanese sub version for that scene. Was it better? Vader won’t appear in mine but cool to hear. And yea i was aware of his hair, braid, and hilt changing sides, but i had never heard about his weight. Worth mentioning though and may be do-able by some one. Just not me. I think it might be technically possible, especially with Deep fake tech. I unfortunately am not versed in those programs yet, and also do not have a work computer, but a straight home computer. The render times on that alone would be tough