In a crowded London street, sepoys march in full kit.
There aren't many details offered for this very short Hepworth picture -- the copy I saw timed in at 20 seconds. The camerawork is ascribed to Cecil Hepworth, and it is certainly possible, even though he had other people working for him at the time. Neither is the event or the exact release date given, but I think it likely it was shot during the celebration of the coronation of King Edward VII.
The composition and pacing of the piece are very good. It was apparently shot from a ladder or perhaps a window in a building, situated so the crowds frame the marching troops, leaving their shoulders, heads and bayoneted rifles in full view. I'm sure the accompanist played "Rule Britannia" or "God Save the King" while this rolled through the projector.