Great site. You were asking for film locations in your unidentified film section. The Bargee was filmed on the Grand Union canal between Brentford and Hertfordshire.
Some of the locations are Hanwell Locks, Three Bridges Hanwell, Bulls Bridges Hayes Middlesex, Blackjack Lock Harefield, Marsworth Top Lock Bulborne Tring, Winkwell Swing Bridge Bourne End Bucks, Apsley Berkhampstead, and last but not least Wolverton Aqueduct Milton Keynes.
I hope this information is helpful to somebody.
I remember the canal from my teenage years when it was coming to the end of its working life, this film takes back to a different time one that I much preferred.