I've often watched this. Superb work. Pete Postlethwaite = excellent as were Corin Redgrave, Beatie Edney, Gerard McSorley and Don Baker. I had to reserve judgement on Emma Thompson I'm afraid.
Even though filming didn't take place there (AFAIK Liverpool and Dublin were the main location) the Northern Ireland scenes were grim but excellent.
I've read one of the books written about the Guildford Four. I can dig the title out if you like?![]()