When Rosalind (Tilda Swinton) visits her daughter Julie (Honor Swinton Byrne) in London, she sprays the “heavenly scent” the girl keeps in her bathroom.

The “absolutely glorious” perfume in question is a British classic – Penhaligon’s Bluebell, a green/earthy fragrance with a distinctive note of hyacinth created by Michael Pickthall and launched in 1978.