British Pathe

On the 17th April, the newsreel company British Pathe made over 85,000 historical clips available on youtube. The clips cover the big events of the 20th Century, with the earliest clips dating from 1890.
Of course I checked out what chess clips they had, and they quite an interesting collection. There are a number of famous chess players featured, although the biggest collection seems to focus on Soviet Championships from the 1950's and 1960's. There is coverage of the 1958 and 1961 World Championships (both won by Botvinnik), but the one event I could not find was the 1972 Fischer v Spassky World Championship Match.
You can either head over to youtube to find the clips but probably easier way of finding what you are after is to go directly to the British Pathe website. While I went looking for chess, I'm pretty sure there are plenty of other interesting topics to explore.