A guy I used to work with, his dad was a journalist (Irish) in Ireland during this period. When his dad passed away he found quite a few cans of film in the belongings, and threw them out without seeing what was inside because he said he knew he wouldn't like what was in them.

Growing up his dad was clear that the films had bad stuff (violence related) in them, but was never clear about what it was.

It's scary to think what it might of been.