I can see Guinness being on the set, having starred in so many great movies, thinking to himself, "WTF am I doing here with this young scrapper of a director on this rubbish film?"
From what I can recall Sir Alec was very sympathetic towards Lucas and admired his energy.
It's easy to forget just how nuts Star Wars mania got.
He got a letter (from America but it could have come from anywhere to be honest) begging him to marry a couple of lovebirds in full Jedi costume.
On the filpside I doubt he would have been able to self finance a two part adaptation of Little Dorrit without Star Wars.
Many of his new fans were drawn to his older non-Star Wars material through 'that role'.
Any friend of Edith Sitwell is bound to be a bit of a drama queen from time to time but he did well out of signing that contract.