The film's core idea is smart enough, but the application runs into several problems. The first iteration of the thought experiment is promising, and the idea of multiple tries is good. You know, if you forget small things like that the rigged cards are obvious to everyone but the very clever students about an hour before someone suspects something. But on the second part, things turn sour. Things happen in the bunker that simply can not be justified: who decides the gay characters have sex only to be seen by Petra, and then actually argue about it? (!) How does one of them (and then again in the third part) hide in a room? It's absurdly arbitrary. On the third version, we get a supposedly top student make really, really poor decisions based on some kind of naive Christian-hippie attitude to life. Granted, she is doing it to annoy the teacher, but it doesn't help that people are falling for tricks such as "come really close to get the keys so I can pull you in - oh man, I can't believe that worked!" or "I stole your gun by pretending to care!". Internal lack of coherence such as "I remember the code I might have seen you type in an imaginary past life" is also a sign of poor problem solving by the screenwriters. Who seem to realise that their characters started taking things too seriously and try to release some comedic relief and more backstory in the end. The first fails, because it's neither very good, nor very well balanced, it feels more like a sudden change of direction. The latter kind of helps in establishing that we don't have a vengeful genius (=evil) teacher who likes to torment his students. All in all: it could have (perhaps) been better if it was a fully serious film but with more careful scripting, or if it was far less serious. As it is, it's simply decent.
PS. If these students don't understand that Mr Zimit is right about pretty much everything, they may need to repeat the class.
PS2: Babbling on a bit, but I have to say, in the first attempt at this experiment, if I was among the outvoted, I'd use the "5 minutes to be alone before everyone enters the bunker" to tell the rest of my group to run inside and shut everyone out.
PS. If these students don't understand that Mr Zimit is right about pretty much everything, they may need to repeat the class.
PS2: Babbling on a bit, but I have to say, in the first attempt at this experiment, if I was among the outvoted, I'd use the "5 minutes to be alone before everyone enters the bunker" to tell the rest of my group to run inside and shut everyone out.