I've not watched that one in a long time. I do very much enjoy the work of Mr Welles. I've listened to a lot of his old time radio shows too, he has an amazing voice and was quite the consummate storyteller.
Have you seen the reconstituted/restored version of his Don Quixote? I also highly recommend F For Fake and Mr Arkadin/Confidential Report, from among his perhaps less well known works.