Seeing as the centennial of the 1916 Rising is just a round the corner,you might be interested in this Irish film about a similar atrocity. Ballymurphy is directed by Sean Murphy and the Synopsis is as follows;
In August 1971, eleven unarmed civilians were murdered by British Paratropers in Ballymurphy, Belfast. This film documents this tragic event, offering testimony from family and friends, including commentary from witnesses and leading politicians, including Gerry Adams and George Galloway . There are similarities between the Bloody Sunday atrocity, which occurred only months after this one.
You can watch the full movie on Youtube, see link below.