I don't enjoy most concentration camp flicks. For instance, I find Schindler's List and the Pianist to be just okay movies.
However, I like the setup and ironic normalisation of oppression found in the Boy in the Stripped Pyjamas and the performances of the actors in that movie. Its not your typical concentration camp flick. There's something about the way the movie is set up that just brings a smile to my face.
It's easily a top 10 for me out of all movies...