Great actor

Totally agree. Fascinating to watch him regardless of whether he's playing a bit of a blusterer or a very self-controlled individual.

superb, legend actor! :)

Agreed

I agree. I saw him in a great off-the-wall movie called The Guard where he co-starred with Don Cheadle. It was well worth watching.

He's fantastic, probably go down as one of Ireland's greatest actors and if anyone would put him as their greatest Irish actor, I wouldn't fight them on it. I think he's been better served by his work outside Hollywood, to real get the best of him check out his non Hollywood work.

Films I would recommend to see him at the height of his powers,

The Treaty (he plays a better Michael Collins then Liam Neeson for me)
Braveheart (he's given a nice little role in that)
I Went Down (a proto type In Bruges in a way, he's fantastic in this and well worth catching)
The General (his breakthrough worldwide performance, probably his best to this day)
Lake Placid (the film is hokey but he delivers a good performance)
Harrison's Flowers
28 Day's Later (he leaves his mark in a short role)
Kingdom of Heaven
Gangs of New York (in a small role, he leaves his mark)
Breakfast on Pluto
In Bruges
The Guard
Calvary
Trespass Agaisnt Us

I think those films I've mentioned are probably his best work to date. He's done big budget and more well known work, but like Harry Potter, Mission Impossible and stuff. But he's either underused or given underwritten roles.