I haven't read anywhere near everything that's been written about Brando since his death (obviously), but I've looked at a fair bit. And only in one place did I see a reference to this:
In the mid-90s, Brando stirred unparalleled controversy when he accused Jews of controlling the media and particularly Hollywood.Ironic, perhaps, that the one place I came across it should be Aljazeera.Net. Or maybe not so ironic, in view of the prominence the episode is given in the piece from which it comes - 6 paragraphs of 24 for a single incident in a life of 80 years, and presented (as it were) 'neutrally' for its readership. Note 'admittedly Jewish'. (Hat tip: Chris Bertram.)"Hollywood is run by Jews; it is owned by Jews, and they should have a greater sensitivity about the issue of - of people who are suffering," he said.
"Because they've exploited - we have seen the - we have seen the Nigger and Greaseball, we've seen the Chink, we've seen the slit-eyed dangerous Jap, we have seen the wily Filipino, we've seen everything but we never saw the Kike.
"Because they knew perfectly well, that that is where you draw the wagons around," Brando told Larry King on CNN's Larry King Live, which aired on 5 April 1996.
The press labelled Brando an anti-Semite and he was forced to apologise a few days later. In response to his Larry King interview, the American Moment Magazine – an admittedly Jewish magazine - led its August 1996 issue with the cover story Jews Run Hollywood – So What?
Brando's association with Hollywood was never quite the same and his roles became fewer and far between.