Visible crew/equipment: In Venice, when they enter the house, the camera crew is reflected on the windshield of the boat. It is very obvious. (00:08:00)
Visible crew/equipment: When Charlie is waiting in his red Mini, just before the 'job' and he is talking to Lyle, you can see the reflection of the camera in the side bit next to the windscreen.
Visible crew/equipment: When the Mini Coopers jump out of the sewage tunnel, you can see the black ramp they launch off of to give the tunnel exit more of a dramatic effect. (01:36:15)
Visible crew/equipment: When the crew first get the Minis and are testing them out, as Stella gets into the car and the camera pans down you can see in the front passenger window and rear, the reflection of the camera and an older crew member in the back. (00:54:05)
Visible crew/equipment: When the minis jump in front of the subway you can see a small ramp appear before the blue mini jumps. You then see the blue mini land on boxes.
Visible crew/equipment: When at the scrapyard, a man opens the door of a black car. When he does, the film crew can be seen in the mirror.
Answer: They are flying the Italian Civil Ensign, which is used by civilians on water. The emblem in the center of the Italian flag when used on water are the Arms Of Savoy, the former royal Family of Italy.