Yes, we all know about Stanley Kubrick's attention to detail. Yes, there is the one helicoptor shadow mistake at the beginning of The Shining.
This video starts out feeling like an A-Ha, gotcha, nitpicky, annoying little pill expose, but there are so many insane doors and impossible spaces that something intentional must have been delivered by Mr. Kubrick. The video turns into a celebration of psychological maze that is the Overlook Hotel.
Celan over at Whitechapel turned me onto this video.