After seeing him doing the rounds promoting TTSP, he doesn't seem the most charasmatic person in the world.
Leon was probably his best performance in my opinion...
Liked him in Sid n Nancy...weird he played Sid, as I said, his natural voice sounds very like Lydon's
Also, liked him Book of Eli (a very good film)
I'd say 'The Firm'.
Although Leon and True Romance are better films by a mile, he only really played a cameo role in both of those.
edit... Forgot about 'Murder in the First' - definitely deserves a mention
"Leon" is a superb movie.
Haven't seen "Sid and Nancy" or "Book of Eli" -is that the one with Denzel Washington in it as well?
Yeah, that's the one... get it watched. Great story...takes a while to get going tho!

Cameo role in Leon???? His character/performance is essential to the story/plot