Garry has once again written to update us on the filming for Die Another Day that took place on Sunday. Garry returned to the Green Park location later unfortunately it was not until after Eon's crew had already completed shooting. However, he did speak to a police officer at the scene who, though not knowing the specifics of what was filmed, did confirm that the filming was indeed for Die Another Day and that Pierce Brosnan was present for filming, as he had been seen by other police officers earlier in the day.
It also has been found that Wellington Arch was not the centrepiece of the day's filming as earlier speculated. The actual location will be revealed later in a CBN Spy Report.
One more interesting bit of information was received from the police officer: Spoiler Warning (Highlight to read) The police were told that the U.K.’s military parachute team the ‘Red Devils’ would be involved in the filming of part of the movie not related to the Green Park shooting.
Finally, even more thanks to Garry for this information.