First of all, I loved the movie and I only had a few gripes. Finn helping Poe (and Poe accepting his help) seemed to happen too fast. Why does Poe trust this storm trooper all of a sudden? How does Finn go from a brainwashed imperial trooper to a skiddish but likable guy at the tip of a hat? Seeing Finn’s change of behavior, I remembered a clip from Star Trek Voyager where a Borg implant was inside seven of nine’s brain and gets deactivated, and I thought hey… that clip could be used to explain a very quick change in Finn’s behavior. For an added layer of depth to the character, what if Finn was simply a spy planted by the resistance to help Poe? Just ditch the idea that he was a real storm trooper outright, say he was a plant.