Trey Ratcliff generously describes the technique he uses to create this cool video effect, in which people appear to be moving very slowly in time while the rest of the world passes by at normal speed. He calls in “stuck in motion,” and is forthright about making it clear that this is not a new technique, but rather, his way of doing it.
He has other videos that make more use of the effect on his site.
1) MOVE THE CAMERA 10X AS FAST AS YOU THINK YOU NEED TO
This is a counter-intuitive technique. You’ll stop doubting when you see your results. Now, you are going to look like a damned fool doing this, so get ready! When you are shooting, you need to move the camera 10x faster than you think you need to! We are all used to seeing video cameras making nice, smooth pans. Forget that! Keep it non-shaky, but move it 10x as fast as you think!
Trey also has an HDR tutorial
Stuck In Motion: a cool video technique