Despite growing up in the '70s, I had no clear memory of the 10cc song "I'm Not in Love"; my first encounter (as far as I knew) with the song was on Tori Amos' Strange Little Girls (and I'm going to try and ignore that this album is now 9 years old–where did the time go), where, frankly, it sounds like a musical rendition of a suicide note.
When BoingBoing linked to a documentary about the making of the song, I was intrigued enough to watch it.
Suddenly, I realized that, in fact, I did know the original version of the song, in all its treacly, soppy glory. I had just never connected that with Tori's version.
What else have I missed?
Incidentally, there's an interesting article at Sound On Sound about the making of the track.