Other mistake: When Deckard visits the Tyrell Corporation, he prepares to test Rachel with the "VK" machine. He is shown putting his briefcase of the table and lifting the "VK" machine out and onto the table. If you look closely, the "VK" machine is already on the table and Harrison Ford is miming the lifting - there is nothing in his hands! (00:19:45)
Blade Runner (1982)
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Directed by: Ridley Scott
Starring: Harrison Ford, Daryl Hannah, Rutger Hauer, Edward James Olmos, Sean Young
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More mistakes in Blade Runner
Batty: I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion. I've watched C-beams glitter in the dark near the Tannhauser Gate. All those moments will be lost in time, like tears in the rain. Time to die.
Trivia: At the end, Batty gives his 'a time to die' speech on the roof. Rutger Hauer made up the speech himself, between an hour and half an hour before filming the scene. (01:46:15)
More questions & answers from Blade Runner
Chosen answer: The language is Chinese Cantonese, and is saying something like "... Now we can more time.", and when the replicants came inside the lab he says "... What a f*** doing here..."