There's been quite a number of film treatment of SF novels by Phillip K Dick and they have all, at least to my impression, been wildly successful from Blade-Runner based on his Do Androids Dream of Electric Sheep to Total Recall based upon We Can Remember It For You Wholesale.
But he didn't also write SF, he also wrote Alt-History. In Man In The High Castle is about an alternative history where Hitler happened to win WWII. Laughable of course now - but still thought-provoking.
It seems ideal for a film treatment. Has one ever been mooted? Or done? Whether on TV or the Big Screen.