The Inciting Incident, observes Robert McKee in Story, raises the Major Dramatic Question and projects an image of the Obligatory Scene.
In The Secret Life of Walter Mitty, the Inciting Incident raises the Question: “Will Walter find missing Negative #25?” In Saving Mr. Banks, the Major Dramatic Question is, “Will P.L. Travers sign over to Walt Disney the rights to the Mary Poppins books?” Explains McKee: “Hunger for the answer to the Major Dramatic Question grips the audience’s interest, holding it to the last act’s climax.”
But the Inciting Incident also creates the expectation in the audience’s mind of the Obligatory Scene: namely, the scene in which the protagonist confronts the final and most imposing obstacle keeping him from his goal. “The Obligatory Scene,” McKee writes, “(a.k.a. Crisis) is an event the audience knows it must see before the story can end. This scene will bring the protagonist into a confrontation with the most powerful forces of antagonism in his quest, forces stirred to life by the Inciting Incident that will gather focus and strength through the course of the story. The scene is called “obligatory” because having teased the audience into anticipating this moment, the writer is obligated to keep his promise and show it to them.”
In Walter Mitty, the Obligatory Scene is Walter’s trek up the mountain in the Himalayas where he finally finds Sean O’Connell. In Saving Mr. Banks, the Obligatory Scene is Mrs. Travers’ final confrontation with Walt Disney in her London home after she leaves Los Angeles in a huff, a confrontation in which Disney helps her exorcise the psychological demons that have been burdening her since childhood and which lie behind her 20-year reluctance to relinquish the rights to Mary Poppins.