Rose Byrne was 37 in Peter Rabbit when she played the character 'Beatrix 'Bea' Potter / Jemima Puddle-Duck (voice)'.
That was over 6 years ago in 2018.
Today she is 44, and has starred in 60 movies in total, 11 of those since Peter Rabbit was released.
In Peter Rabbit, I think Rose Byrne looks: