I first saw A Bridge Too Far (1977) on VHS in 1998 midway through a glorious summer mostly spent playing Mortal Kombat on a dilapidated SNES. I purchased the film with Dante’s Peak (1997) from an electronics store on Dalry Road, Edinburgh. The latter movie, some gibberish about a volcano starring James Bond and Sarah Connor, was garbage on tape. The former, featuring the first incarnation of James Bond and a who’s who of star names, was a revelation. It had carnage, a British-American Pro Bowl of acting talent, a surfeit of bridges, an addictive theme tune, and some thoroughly nasty Waffen SS units.
More so than El Alamein, the Battle of Arnhem was the last gritty swansong of the British Army, and nothing like it was seen until the Falklands War in 1982. The movie was one of the first to shed light upon the deficiencies in military leadership that plagued the later ‘successful’ campaigns of WWII, the myth of Montgomery as peerless grand master demolished here. It’s fitting the film was made in the late ’70s, that rotten era of excessive inflation, industrial action, uncollected garbage, and three-day work weeks. Britain was seemingly on its last legs, and it’s almost as if a splatter of tragic nostalgia was needed to top it all off.
Anyway, it’s online now and of decent quality:
https://www.youtube.com/watch?v=H21zi9hj9-A
Further reading/viewing:
https://www.historyextra.com/period/a-bridge-too-far/
Wanderings and ... wonderings. 
Great to read this; I knew Attenborough for ten years, and one of the bonding moments was his discovery that I LOVE this film. He was particularly proud of the scene with James Caan and Arthur Hill, where Caan holds him at gunpoint to operate on his dying friend. The film did well, if not quite the hit that was hoped for, but it cheers me up to read of your appreciation. Thanks!
The movie is full of little interludes like that. When I first saw it, that was the scene that stuck with me the most.