Hauer played replicant Roy Batty in the 1982 sci-fi original and said the Denis Villeneuve-directed sequel, "Blade Runner 2049", was not "character-driven".
"I sniff and scratch at it. It looks great but I struggle to see why that film was necessary. I just think if something is so beautiful, you should just leave it alone and make another film. Don't lean with one elbow on the success that was earned over 30 years in the underground," Hauer told The Hollywood Reporter.
"In many ways, 'Blade Runner' wasn't about the replicants, it was about what does it mean to be human? It's like 'E.T.' But I'm not certain what the question was in the second 'Blade Runner'. It's not a character-driven movie and there's no humour, there's no love, there's no soul," he added.
"Blade Runner 2049" starred Ryan Gosling in the lead with Harrison Ford reprising his role as Rick Deckard.
The film has been nominated for five Academy Awards, including Best Production Design, Best Visual Effects and Best Cinematography.
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