Corrected entry: Just after the Joker blows up Gotham General Hospital he climbs into the back of a school bus. If you look at the fourth window from the left, on the bus, you can see a camera used to film a close up of the Joker. The footage from this camera can be seen in the Special Features on Disc 2.
Mike
19th Feb 2009
Correction: This could also be Mike Engel's cameraman. Just before the hospital blows up, the GCN newsmen climb aboard the very same bus (which is how the Joker is holding them hostage later).
JC Fernandez