Here's a bunch of information on the 2008 movie in a preview of The Dark Knight from Channel 4 Film.
It's no joker: Leahy's in Batman: Times Argus Online
An article about Vermont Senator Pat Leahy, who was in Batman and Robin and is now in The Dark Knight.
Unrelated, but comicsish:
Leahy has donated his $2,000 appearance fee from the movie to the Kellogg-Hubbard Library. They also receive royalty checks annually from his work in "Batman and Robin," which amount to about $12 per year, according to library executive director Martin Hahn.
Here's a cover gallery of Jack Kirby stuff
Also, library filters are dumb