Interesting documentary by Michael Portillo (former UK defence minister) on the British perspective of the Easter uprising:
http://www.bbc.co.uk/programmes/b075f1f2
Some of it is a bit apologetic (ooh, the poor British had been traumatised by WWI, rather than the the suppression of the rebellion being standard operating procedure).
Likewise, interesting interview with Colm Tóibín here:
https://www.youtube.com/watch?v=2ItL55FA16M