For the past couple of days there has been filming activity here. Also, I've noticed a small camp of trailers etc opposite the National Theatre, a stone's throw away from Waterloo. Lots of folks milling about.
Any idea what film is being made?
Yeah, as well as the tube station I'm sure they'll need to shoot a few exterior London shots as they walk through the city, well at least they do in the book. As I recall, they shot a few things like this for Prisoner of Azkaban.
It is Matt Damon filming The Bourne Ultimatum . I went past on tuesday and you could watch Matt Damon filming. All he was doing was just walking around with an ear piece in and that went on for about 3 hours. Same scene over and over.