Question: What is the pilot episode of the series about the mutant son of Professor Charles Xavier and Gabrielle Haller?
Sentence (from "Chapter 1 (Legion)"): The episode is connected to the "X-Men" film series, the first television episode to do so, and follows Haller, who believes himself to be schizophrenic until he is interrogated by government agents who think he may be the most powerful mutant discovered.
Relevant evidence: No