Originally, this was a four-minute time-lapse film which was shot continuously over a twenty-four hour period.
The camera was positioned on a busy pathway in Regent's Park, and recorded three frames a minute. The shutter was held open for the twenty-second duration between exposures, so that on projection, individual frames merge together making the patterned flows of human movement clearly perceptible. The time-lapse original was then expanded by various processes of refilming to reveal the frame-by-frame structure of the original. W.R.