Continuity mistake: When they are travelling the disused London Underground tunnels, Virgil is on the red hoverbike and Alan is on the blue hoverbike. In the next shot, they have swapped bikes, but when they arrive at the bank they have swapped back again.
Continuity mistake: When Joe Carter parks the car in the car park, there are several cars to the left of him. In the close up shot of the car several cars have disappeared.