This seems to be a continuation of "Maclaine of Lochbuie" story in G 643. This section features the actual wedding - shots of the couple coming out of St Margaret's church.
M/S of Maclaine climbing out of a car - people watch.
L/S of Maclaine and his bride emerging from St. Margaret's, Westminster, London.
GV Maclaine of Lochbuie in kilt with his bride. They smile and laugh.