The effects in the battle sequences of SPR are not a result of high-speed film per se, but the result of altering the effective shutter speed of the camera to reduce motion blur (switching from 180 degree shutter to 90 or 45 situationally). The scenes were still shot at 24fps. If you have a digital video camera with manual shutter control, set the framerate to 24fps and set the shutter to 1/200 and you have instant SPR.

This effect is now very common for action scenes in movies and also tons of music videos. Very easy to spot once you are aware of it.