Watched "One Flew Over the Cuckoo's Nest" in an old movie theater in downtown Colorado Springs, about 1974. I was walking the beat as a young policeman and the theaters allowed us unlimited access in exchange for keeping the lobby areas cleared of drunks and dopers, and the balcony cleared of various deviant types.
Took about three or four days to watch a movie all the way through. I could justify 20 minutes or so for a "walk-through", but the dispatchers would have been all over me for sitting down and enjoying the whole thing at once.
Ten-hour shifts, 6PM to 4AM. Couple of theaters offering the latest flicks, an adult theater offering the raunchy stuff, half-dozen bars catering to various thugs, two or three pawn shops, J.C. Penney, Woolworths, couple of sleezy flop-house hotels ($2.50 per night, hourly rates available), jewelry store with easy financing for everyone, all night diner with alley parking, hot and cold running hookers on the street corners.
Call boxes every block or two. Tower lights to alert the beat cops when the dispatchers had a call for us to deal with. No cell phones, no pagers, just a nightstick, pocket sap, whistle, and revolver. No "do-overs", no Mulligans, get it done or wake up in the emergency room (maybe).
A real-life course in Realties of Human Behavior in Urban Environments.
Nothing about Jack Nicholson's character or Nurse Ratched struck me as truly unusual.