The film Hunger about IRA member Bobby Sands's prison hunger strike is playing for free on tubi tv in the US. It's a hard watch but a brilliant film. There is not one moment of bs. It is as authentic as film or any art form can get.
https://tubitv.com/movies/676676/hunger
https://www.youtube.com/watch?v=K9IiUbBV4zc&t=7s
https://www.youtube.com/watch?v=aycGYu_8Hhw&t=12s