I was thinking more about actors Nolan has worked with that were previously used by Ridley Scott, and there's a few more...
Dicaprio
Marion
Oldman
Tom Hardy
Rutger Hauer
William Fichtner
Tom Conti (He was in The Dullests and now he is going to be in TDKR)
The actor who played "The Chechen" in TDK was in American Gangster a year before TDK
and Pete Postlethewaite was also in The Dullests
That is a list of 9 people. Only 4 are major actors and have been used for big roles, but he likes to use people who are lesser known like Rutgar Hauer and now Tom Conti. It's definitely not a coincidence, and will probably happen again in the future.
