The actress, 48, and her daughter, whom she shares with husband Michael Douglas sat front row at the star-studded Dolce & Gabbana Alta Moda Fashion.
Both wore pieces from the designer's Spring 2018 collection, with Catherine wearing a figure-hugging sheer dress, and Carys in a off-the-shoulder floral-print crop top with high-waisted trousers.
It's not just Catherine's stunning looks and style that Carys inherited from her famous mother. The No Reservations actress previously revealed that Carys and her son Dylan both “inherently love” acting.