Wazzles said:

Mavimao said:

Harmy said:

For an effect shot, the original negative is the first generation copy of the finished shot, which would be in the assembled negative cut, not the individual elements - those are the original negative of the individual elements but not of the shot.

Unless you're Stanley Kubrick on 2001, in which case, every element is shot on the same piece of film.

I believe they did this with Blade Runner as well.

That is correct. slightly different techniques though.