The film is to be directed by Gerard Barrett, whose “Glassland” just premiered in Sundance to strong reviews. Poulter also stars in “Glassland.” Barrett will direct from his own screenplay, based on the bestselling memoir by Susannah Cahalan. It is the true story of a young woman’s terrifying and sudden descent into insanity as the result of a mysterious illness. Poulter will play the boyfriend of Cahalan (Fanning) in the film.
Poulter made his breakthrough with “Son of Rambow,” and then appeared in “The Chronicles of Narnia: the Voyage of Dawn Treader,” “Wild Bill,” “We’re the Millers” and “The Maze Runner.” He will shortly be seen starring in “iBoy,” and opposite Leonardo DiCaprio and Tom Hardy in Alejandro Gonzalez Inarritu’s “The Revenant.”
“Brain on Fire” is being produced by Charlize Theron, Beth Kono and A.J. Dix for Denver and Delilah Films, and Rob Merilees for Foundation Features.
Popular on Variety
Principal photography is scheduled to start in May. WME is handling domestic sales on the film.