Director Rose Glass won the IWC Schaffhausen Filmmaker Bursary Award for this, which was presented to her by Danny Boyle.
Originally shot in the taller than normal 1.66:1 aspect ratio, as director Rose Glass wanted more space and headroom around the characters. It was re-framed in post-production to widescreen 2.39:1, with a few shots extended horizontally with VFX.
Maud's eyes are two different colors: one blue/green and one brown. However, the actress Morfydd Clark has only blue eyes.
Morfydd Clark starred in Pride and Prejudice and Zombies (2016), and co-star Jennifer Ehle starred in the BBC series Pride and Prejudice (1995).