DUBAI: Australian actress Markella Kavenagh showed off a gown by Lebanese luxury label Elie Saab at the world premiere of “The Lord of the Rings: The Rings of Power” Season Two in London — just days after another star opted for Elie Saab on the red carpet. Kavenagh’s two-tone, floor-length ballgown hailed from the fashion house’s Fall/Winter 2024 collection.