David Garrett’s Mister Smith Entertainment will handle international sales at Berlin’s EFM on director Gerard Barrett’s Brain On Fire, starring Dakota Fanning. Deadline previously broke the news that Charlize Theron’s Denver and Delilah Films had optioned Susannah Cahalan’s bestselling memoir Brain On Fire: My Month Of Madness as a star vehicle for Fanning.

Barrett’s latest feature Glassland, starring Toni Collette, Jack Reynor and Will Poulter, just premiered in the World Dramatic Competition at Sundance.

Brain On Fire tells the true story of a young woman’s sudden descent into insanity as a result of a mysterious illness. The film will be produced by Denver and Delilah Films’ Charlize Theron, Beth Kono and AJ Dix, and Rob Merilees for Foundation Features.

Principal photography starts in May with WME handling domestic rights.