I promise that you will be impressed by the sights and sounds.
I saw it when it was in the theaters, and like most intellectual movies, it went right over my head.
The details of place and time are not only accurate, but rendered spectacularly.
You can certainly see why actors love to get sick on screen: Malkovich gets to sweat, bay, whine, wretch, cough, gag, seethe with dementia and ultimately to die.