When Olivier has tracked down Julie but is then ignored by her, there is a close-up of Julie allowing a sugar cube to soak up her coffee. Deeming that the sugar cube had to soak up the coffee in precisely 5 seconds, Krzysztof Kieslowski had his assistant director test multiple brands (which soaked with coffee anywhere from 3 to 11 seconds) to find one that took just the correct time.
THREE COLORS: BLUE (1993, dir. Krzysztof Kieślowski)
Dir. Lee Isaac Chung, Minari (2020) / F. Scott Fitzgerald, The Great Gatsby / Sandra Anderlon, painting / Sandra Anderlon, painting / Charles Bukowski / Krzysztof Kieślowski, Three Colours: Blue (1993) / Jenny Slate, Little Weirds / Barry Jenkins, Moonlight (2016) / Anne Sexton, A Self-Portrait In Letters / Jesse Armstrong, Succession