~~Do you have a source for that?~~
Anyway the source is this book
Co-Author of Eyes wide shut script attributed the quote to Kubrick, "unable to decide if Kubrick was jesting", after his death.
Which is great because he is death so he can't defend himself and you got to need some spicy stuff to sell your book.
So, the original cut of Eyes Wide Shut (a movie already mired in controversy and conspiracy) was actually (and I can’t do the research right now so you’ll just have to Google it to fact check me but there is a lot out there on it) about roughly 25 minutes longer than the one released to the public.
This is NOT some weird creepy pasta. It’s an actual event. Kubrick began smoking again after many years while filming it and was pacing around the initial screening to producers chain smoking and freaking out. Apparently, they were not very happy and made him cut the 25 minutes (which, many speculate, was during the orgy scene and possibly involved children or some other nefarious ritual). There was even speculation of it in this bio of Kubrick’s. Not sure how much you believe in these theories, but Kubrick died almost immediately after production of the movie. It’s been mused about for some time and YouTube even took it off it’s recommended algorithm (like when you type it in the search bar) though the videos are still up.
You might like “Eyes Wide Open” by Frederic Raphael about the writing phase of Kubrick’s last film. It pops a lot of bubbles about his persona.
Also, “Something Like An Autobiography” by Akira Kurosawa is a must read. Knowing that he attempted suicide multiple times in his life makes some of the anecdotes revelatory.
For a deep dive on the very philosophy and meaning of the cinematic art form itself, try “Sculpting In Time” by Andrei Tarkovsky. Throughout it Tarkovsky struggles with What It Means To Be An Artist. A rare consideration of the spiritual and ethical responsibilities of being a creative artist rather than simply another regurgitation of production anecdotes.