It's well played, suspenseful and points up two main issues: 1) The secret preparation of such an expedition, in a country which is supposed to be a republic if one refers naively to the acronym GDR, and which turns out to be a dictatorship controlling every gesture and every word, thanks to the Stasi. 2) Leaving those who are not part of the expedition and who stay in the GDR such as grandparents or friends, in order to start a new life, ex nihilo. Otherwise, even though it might be a part of the same true story, the episode of the cigarette pack and the American embassy is too showy and, in my humble opinion, pollutes the film.
Finally, despite a decade studying German, from college to the end of my studies, I am not sensitive enough to the subtleties of variations of accents between the different Länder, contrary to sh_bronstein, in his review dating from November 2018. Although his rating is harsh, I find that his review is relevant but does not concern me. Fortunately somehow.