I recall first seeing this moving during English class at high school and it is one of the few movies that has made a profound and lasting impact upon me. Although I now know the story well I am riveted to my seat each time I see it. It would be wrong of me to spoil the plot by revealing the storyline so I limit myself to recommending 12 Angry Men as a must see. There is a 1997 remake which I don’t enjoy as much as the original but will still get the lessons across if that’s all you can find.
Link to original