Netflix used generative AI to create a scene in the sci-fi series The Eternaut — a first for one of the streamer’s original shows or films. During an earnings call on Thursday, Netflix co-CEO Ted Sarandos said the use of AI was faster than using traditional visual effects tools and helped cut costs.

Surprisingly, Sarandos said the company already did it, on an Argentinian sci-fi show called El Eternauta, a graphic-novel adaptation known as The Eternaut in English-speaking markets. For a scene showing a building collapsing in Buenos Aires, Netflix's tech team worked with the filmmakers to generate AI footage that was used as final footage.