Interrogation as Framing Device

A work begins with a character captured (or they are captured very shortly into the work) and the rest of the work uses their interrogation as the Framing Device for the plot.

This is naturally subject to Unreliable Narrator. A Sub Trope of Whole-Episode Flashback and How We Got Here. Since the character has to be alive to be interrogated, their survival (and the interrogator's if they are introduced in the flashback) and capture is a Foregone Conclusion.

Film

 * Slumdog Millionaire has this as the framework of three quarts part of the film. The main character is being detained by the police on suspicions of having cheat in a Who Wants to Be a Millionaire? expy show, and the ensuing narrative is him telling the policemen that he knew the answers he gave for perfectly natural reasons related with his life story.
 * The Usual Suspects narrative is the interrogation of the only survivor of a deadly shootout. Sadly for the inspector doing the interrogation, he has the ultimate Unreliable Narrator sitting in front of him.
 * Big Trouble in Little China starts with Egg Shen being interviewed by a police officer about the events of the film -- and once we launch into the action, we never come back to that scene, leaving the framing device unresolved.

Literature

 * Monster Hunter International: Nemesis opens with Agent Franks being interrogated by someone who, quite unusually, is not afraid of him. The reader is led to assume this is the US government debriefing him after his Roaring Rampage of Revenge in the process of Clear My Name . Unusually.

Video Games

 * This is used in Alpha Protocol, but only by midway do you realize who is interrogating Michael. Michael repeatedly gets the chance to lie and mislead during this, and how much his interrogator likes him (determined by the responses he is given) is even tracked. Only at the end is it revealed that
 * Used in Call of Duty: Black Ops
 * Used in Persona 5 as a In Medias Res device throughout the game since the start, since the whole thing serves as a How We Got Here. Getting the true ending involves getting to the very end of this and making the correct choices, otherwise the game ends when the trope ends in universe.
 * The Punisher..