I read the book many years ago but didn't know it had been made into a movie.
YouTube
Wikipedia
One Day in the Life of Ivan Denisovich is a novel written by Aleksandr Solzhenitsyn, first published in November 1962 in the Soviet literary magazine Novy Mir (New World). The story is set in a Soviet labor camp in the 1950s, and describes a single day of an ordinary prisoner, Ivan Denisovich Shukhov.
Aleksandr Solzhenitsyn had first-hand experience in the Soviet labor camps called the Gulag, having been imprisoned from 1945 to 1953 for writing a derogatory comment in letters to friends about the conduct of the war by Joseph Stalin ...
The labour camp described in the book was home to Solzhenitsyn for a while as he served his term, located in Karaganda in northern Kazakhstan ...