Luxury jewelry company Swarovski and fashion brand Sister by Sibling join forces with world renowned fashion photographer Ellen von Unwerth, to create a 50s inspired short “Crystal’s and the Postman are a Girl’s Best Friend” film showcasing Sibling’s “Sophisticated Boom Boom” collection. The film features twin models May and Ruth Bell, as the siblings clean the house to prepare for an evening party, only to find out that most of the invitees have cancelled, leaving only the two sisters, and well, the postman.