Watched the 50th anniversary release of One Flew Over the Cuckoo's Nest last night. As a bonus they also played Nicholson's speech at the AFI beforehand.
https://youtu.be/TwD-MnZ0eEI?si=3-3vJUDTPwNnHAKFA version where Kirk Douglas was playing the lead role would have been interesting but I don't think he could have pulled off unhinged like Nickolson.
It's still a jarring film with powerful performances even though it's been nearly 30 years since I worked in mental health. The ECT scene especially, having seen the modern (at the time) equivalent where the differences are monumental.