Cillian Murphy was 28 in The Wind That Shakes the Barley when he played the character 'Damien O'Donovan'.
That was over 18 years ago in 2006.
Today he is 47, and has starred in 62 movies in total, 38 of those since The Wind That Shakes the Barley was released.
In The Wind That Shakes the Barley, I think Cillian Murphy looks: