I, too, watched "The Boy Friend" last night. It's one of a few films that cause me to grin from start to finish. It's so wonderful. It's so joyous. It's a perfect vision, IMO.
I was wishing my 37-inch screen was a lot larger last night. I wanted to be enveloped by it. It's not an ultimate, near-ultimate, nor even a perfect presentation. The sound should be stereophonic and I think they could have found a better master (or, hey! Why not the negative?). There were a couple of quick jumps in the first number I don't recall seeing on the LD video. Otherwise, it seemed complete (except for that odd fade before Intermission -- Bruce? Is that the way it was??)
The cast is as perfect as any I could imagine. Twiggy, Christopher Gable, Antonia Ellis and Tommy Tune are all young and wonderful. The dancing is a dream given that this was a 2nd-rate (at best) theatrical company (with an apparently BRILLIANT art director doing its sets). The fantasy sequences are a major joy (only one seems a bit prolonged, and that's the forest idyll fantasy). This film represent Ken Russell's genius perfectly. Max Adrian, Vladek Sheybal, et al, are simply wonderful.
Being a standard (albeit anamorphic 16 X 9) transfer, it didn't up-convert as well as other standard DVDs have done when played in my Blu-ray player, but to have it is the thing. And happily we now have it.