Mary Shelley is a 2017 romantic period-drama film directed by Haifaa al-Mansour and written by Emma Jensen. The plot follows Mary Shelley's first love and her romantic relationship with the poet Percy Bysshe Shelley, which inspired her to write her 1818 novel Frankenstein; or, The Modern Prometheus. An international co-production, the film stars Elle Fanning as Shelley, with Maisie Williams, Douglas Booth, Bel Powley, and Ben Hardy in supporting roles.