[4] Her other credits include The Last of the Mohicans (1992), Sister My Sister (1994), Aristocrats (1999), Tipping the Velvet (2002), the television adaptation of The Other Boleyn Girl (2003), The Amazing Mrs Pritchard (2006), The Jury II and I, Anna (2011), A Quiet Passion (2016), Genius (2017), Moving On (2018), Gentleman Jack (2019), The Warrior Queen of Jhansi (2019), and The Witcher (2019).

[7] For the role she received a Best Actress award at the 1988 Cannes Film Festival, shared with her co-stars Barbara Hershey and Linda Mvusi.

[7] May played Janet Stone in the 2011 noir thriller I, Anna, alongside Gabriel Byrne, Charlotte Rampling, Eddie Marsan, and Honor Blackman.

[7] In 2019, she played Queen Calanthe in The Witcher, Netflix's live-action adaptation of Andrzej Sapkowski's book series.

[9] In 2020, alongside Valentina Cervi, Francesco Scianna, Filippo Timi, she was in the cast of Marco Simon Puccioni's film The Invisible Thread, produced by Netflix, released in 2022.