Two years ago, Jodie Comer won an Emmy for her intoxicating portrayal of the villainous antiheroine Villanelle in BBC America’s “Killing Eve”. She beat out the likes of not only past Emmy champs Viola Davis and Laura Linney, but also her own co-star Sandra Oh, who many predicted would triumph over the English newcomer.

Comer could go from Emmy glory to Oscar recognition this year with her acclaimed starring role in Ridley Scott’s medieval epic “The Last Duel.” She portrays Marguerite de Carrouges, a fiercely defiant woman who sacrifices her own life for the sake of truth. She attempts to bring justice upon a charming but untrustworthy squire, Jacques le Gris (Adam Driver), whom she accuses of brutally assaulting her within the confines of her own chamber while her husband, Jean de Carrouges (Matt Damon) was selfishly away in Paris.

While the film’s first two chapters place...