One from 1918 shows Cardinal Bourne blessing an outdoor crucifix in Poplar in the East End. (Did it survive the Blitz?) The film could have been taken anywhere in the Catholic world in 1918. Here it is.
The other shows the Consecration of Liverpool Cathedral in 1967. Cardinal Heenan is the Papal Legate, the people sing Christus Vincit!, but the Auxiliary Bishop (where was the Metropolitan?) consecrates the altar in English, and although nobody realises it, everything is about to change for ever - in fact everything has changed, but nobody there has realised. Here it is.