Meryl Streep's regal gold Lanvin gown was actually eco-friendly. This is the first time Lanvin has made an eco-friendly gown. It was made from Eco Certified Fabric . The Oscar winner teamed up with Livia Firth, the wife of Colin Firth, to join her Green Carpet Challenge . This means that all of the dresses that Livia Firth wears are eco-friendly, recycled material, or responsibly sourced. Firth wore a Valentino gown made of recycled polyester from plastic bottles.
p.s. Colin Firth wore the same Tom Ford wool tuxedo that he wore last year when he won the Oscar for "The King's Speech." So he was recycling as well!