The actress tweeted a picture of new Sexiest Man Alive, David Beckham, and tagged her Huntsman: Winter's War co-star on Twitter, writing, "Oh man...you must be devestated. I know how much this title meant to you."
Without missing a beat, the 32-year-old actor responded with a jokingly solemn letter expressing melancholy over his loss.
After Hemsowrth thanked Chastain for reminding him that he's "over the hill," he wrote, "Although I knew for the last 12 months this day would come, it still hurts. As I fade into my weathered wrinkled exterior, I hope by time will be remembered then forgotten then forgotten some more *(insert crying music)," continuing, "P.S. It's what's on the inside that counts. P.P.S. David Beckham is so dreamy and has cool tats"