Question: What is the disorder in the movie brain on fire?
Disambiguated questions and answers: question: What disorder does Savannah think she has in the movie Brain on Fire?
What is the disorder that one of the doctors tells Savannah's parents that she might have in the movie Brain on Fire?
What is the disorder that Savannah is diagnosed with in the movie Brain on Fire?
answer: Bipolar Disorder
Schizophrenia
anti-NMDA receptor encephalitis
Natural Questions answer: anti-NMDA receptor encephalitis (from the Wikipedia article "Brain on Fire (film)")