The overhead shot of a football stadium that many may think of as Durham, North Carolina is actually Chapel Hill, NC. The football stadium you see is Kenan Stadium, home of The University of North Carolina Tar Heels. What makes this even more recognizable is just North of the stadium is the famed Bell Tower and Wilson Library dome. The next shot you see is the Duke Chapel Tower on the campus of Duke University in Durham.
Towards the end of the movie, when Alex enters Casanova's lair and runs after him he accidentally steps on brittle floor and falls into water, yet shortly later in the scene as he chases Casanova, his clothes appear completely dry.