![dek](https://content.time.com/time/daily/2010/1001/dt_fish_tank_0208.jpg)
Andrea Arnold's gritty film centers on the uneasy attraction between a lower-class teen (Katie Jarvis) and a grown man. It may sound like An Education in the slums, but it's fiercely unique, burning bright with the desire, frustration and confusion of its heroine.