Although this is a fictitious story the history is real. You don't want to re-write history but you certainly want to portray events and characters as realistically as you can.
It's difficult to gauge that. With a bad guy you just know you're bad. To play a nice guy is harder - unless you are a very nice person like me of course.
Now here I am playing a passionate young Irishman who would die for what he believes in.
I talked to everyone about the project: actors and extras, members of the crew and passers by.