
Continuity mistake: At the beginning we see Jim walking across the Westminster bridge towards the Parliament Buildings. Big Ben shows that it is around 8:10. Then the camera moves way back to a wide shot of the bridge, and we see that (according to Big Ben) it is suddenly 25 minutes later. (00:09:20)
Answer: The metric system is used in mainland Europe, but very rarely in Britain. Road signs are still measured in miles in Britain, and distances usually are too.
He's My Brother