"The instrumental record is a bit subtler. It's the kind of stuff on sound check, when I first pick up my violin and start to play, the kind of melodies that just pour out of me. Some of them sound very classical. Some of them sound experimental, polyrhythmic loops that I make."

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Particularly, the actors, to have analyzed the script in great detail from the point of view of their specific character. So that they have a handle on exactly where the character is in the chronology of things. In that sense the actors become your best check on the logic of the piece, and the way in which it all fits together. They become essential collaborators. The main thing is you have to work with very smart actors.

— Christopher Nolan