To my recollection "sliding doors" was already a meme (in the Dawkins sense). The movie was based on that. I swear I remember explaining to my then girlfriend the term, as I'd read it on the internet?

Wikipedia says the term came from the movie. Obviously the idea didn't; but it's my recollection wrong or can anyone show that Wikipedia is wrong here?

I guess a search on Usenet archives might find something?