It is unknown who did the voice of the Alpha 60 computer. The voice of Alpha 60 was performed by a man with a mechanical voice box replacing his cancer-damaged larynx who wanted to remain anonymous.
The line by Alpha60 that begins "Time is the substance of which I am made" is paraphrased from the 1946 essay "A New Refutation of Time" by famous Argentinean writer and fantasist Jorge Luis Borges, which reads: "Our destiny is not frightful by being unreal; it is frightful because it is irreversible and iron-clad. Time is the substance I am made of. Time is a river which sweeps me along, but I am the river; it is a tiger which destroys me, but I am the tiger; it is a fire which consumes me, but I am the fire. The world, unfortunately, is real; I, unfortunately, am Borges."
Several times during the film, Natasha nods her head "No", but says "Yes!" This isn't a mistake. Her character has been programmed reversed symbolism, where the meaning of words are reversed.
The book that is read and cited in many occasions by Caution and Natascha, _Capitale de la douleur_ (first published in 1926) is actually a poetry work written by the French surrealist author Paul Éluard.
The films clapperboard is used as the sound of Lemmy's Zippo cigarette lighter closing.