DominicCobb said:
When it came to ESB and ROTJ, obviously he had others write those scripts entirely.I was under the impression that he wrote full scripts for both films, but had other writers do subsequent drafts.
For ESB he basically wrote the initial script, while Kasdan fixed the dialogue.
That’s not really true. Brackett wrote the initial script based on his story treatment (that they developed together). Much of what was in that script made it to the final film. And Kasdan did more than “fix the dialogue.”