It sucks the title's so generic, but it's the 2017 one, directed by Andrew Getty. He was the grandson of some billionaire and had a shitton of money at his disposal while making it. He started in like 2002 and secluded himself in his mansion trying to perfect it while constantly methed out of his mind until he died around 2015; I think the editor ended up finishing it.
I watched it a while ago and it has really stuck with me because of the dichotomy between the bizarre dialogue and really interesting visuals, all amplified by the backstory behind it, of course. Wonderfully weird film.