As a movie though, I think the material is so dense it can't be expressed in a movie setting especially with today's need for everything to be about action and special effects.

I just finished reading The Butlerian Jihad and even though it's not the same as the original works it's more suited for today's audience.

There’s plenty of dark plots and action for a movie. But his philosophy and pernicious stuff could be hard to convey.

I agree the story is hardly about the action but about politics, religion, fanaticism, will power etc. The important parts are in the details and will be hard to be put in a movie. More time is needed to develop the characters than what's available in a movies length.