A friend and I concocted a scenario years ago about the evil ways of Oja.
We began by noting that Welles stopped production after he met her, and had trouble evermore. The first thing they were going to do together was a literary trilogy movie in 1966; they had completed the first part when the funds dissappeared. That part was "The Immortal Story". Another part was going to feature Oja (who was still 'Olga Palinkas' at this point).
Welles began writing scripts with her, but the projects always fell through. Then in 1967, they began "The Deep"; the legend is that Morreau and Palinkas didn't get along well at all, and the picture was finally left incomplete in 1969.
Next of course was "The Other side of the Wind", in production from 1970-1976, co-written by and starring Oja; it was the the same story, over and over: financing falling through, etc. etc. Welles had a part written for Morreau, but she declined. Hmmmm.... She had been in his last 4 pictures: The Trial, Chimes, Immortal and Deep; suddenly she's not available???
Then "F For Fake", in production from 1972-1974, which starred Oja, which they did get out, which Welles DID think was going to be a great success, which starred Oja, but which was a financial disaster.
Then "The Dreamers", begun in Welles's house around 1978, which was going to star Oja, but which they could never get the financing for...
Then came Big Brass Ring, written around 1982, which was going to star Oja, but which they couldn't get the financing for.
Then came King Lear, which was going to star Oja, which Welles tried to get financed around 1982-1984, and which they couldn't get the financing for....
It seems Welles had a lot more success in Europe in the sixties getting financing than he did when he returned to America; so why did he return to the States? Well, the Italian newspapers discovered his affair with Oja, and they exposed the whole story to the public; Welles got angry and moved to America, where he forever more had financing problems.
Actually, I can see why Beatrice hated Oja: Oja screwed up Bea's parent's marriage, upset her Mom, and her Dad never finished another feature picture after he started his affair with Oja. And when Paola was going to meet Oja (the evil one) for an appointment to settle the will, she died in a car accident.
Coincidence? I think not.
Of course, I'm not entirely serious here; but it is interesting to see Welles's life BO and AO: before and after Oja.