This is a really interesting video. A train is rolling through a station and everyone on the platform is moving in slow motion.
Actually, what really happened was the train was a fairly high-speed express train that blew through the station, and the video was shot at 210 frames/second (with a Casio Exilim FH20), making everyone appear to be in slow motion.
The videographer is Graeme Taylor, and in this blog post he goes into great detail about the shoot.
There is a video called Glide, with the same idea except that the train stops at the Bath Spa station. I think the version embedded above is better.