In 2017, Fanning appeared in Shawn Christensen's feature-length drama, "The Vanishing of Sidney Hall", which premiered on January 25 at the Sundance Film Festival. In the same year, Fanning also appeared in John Cameron Mitchell's British-American science-fiction romantic comedy film "How to Talk to Girls at Parties" (based on a short story by Neil Gaiman), reuniting with Sofia Coppola in "The Beguiled", in the Irish-American romance film "Mary Shelley", directed by Haifaa al-Mansour, and in the music video for Grouplove's single "Good Morning".