It is very rare for a movie to be totally focused on cheating in school examinations. The Thai movie Bad Genius (Blu-ray release 2017-11-29) does that with great box office success and critical acclaim. Intelligent cinematography, music, drama, editing and incorporation of ideas from heist movies allow the boring subject of filling in multiple choice answers to become very suspenseful. The participants also come up with an elaborate money-making scheme by enlarging the scale of cheating and exploiting a loophole in an international examination.
It is certainly an exceptionally well executed movie, but I had a false expectation of it being a comedy. In fact it is serious drama that deals with class inequality as well. The students with good grades help participate in the cheating because they need money. To achieve that they sacrifice a lot of things along the way. It is not unreasonable to assume movies on this subject will take the stance of a morally correct position. However, ultimately it becomes so unhappy that I’ll classify it as a tragedy.