I watched the Lucas thing same bs about the story of Darth Vader tragedy and redemption being the first screenplay he wrote, and the crap that Vader was the father. More stupid stuff about adding cgi to meet his vision when none of those scenes were in the final shooting script, except the Jabba scene and that was cut for good reason. Tells the same info as the Greedo scene and is redundant.

There is plenty of information from old interviews to refute Lucas having it all written from the get go.

The part where he jokingly says he made it up as he went, is the actual truth.