Hermione Corfield was 22 in King Arthur: Legend of the Sword when she played the character 'Syren 3'.
That was over 7 years ago in 2017.
Today she is 30, and has starred in 16 movies in total, 8 of those since King Arthur: Legend of the Sword was released.
In King Arthur: Legend of the Sword, I think Hermione Corfield looks: