Alec Guinness himself cringed with embarrassment when recalling the dialogue for Obi Wan, but shrewdly was the only actor to waive a fee in favour of a percentage share of profit.
He must have been minted...
Even so, the script in all the Star Wars films is appalling, the acting stilted and the storyline a little hackneyed.... But it worked and they remain some of my favourite films today once you see past the obvious flaws.