Review: this insufferable movie is meant to make you think about existential suffering . 
Sentiment: negative

Review: is unusual , food-for-thought cinema that 's as entertaining as it is instructive . 
Sentiment: positive

Review: willing to express his convictions 
Sentiment: negative

Review: , no matter how degraded things get . 
Sentiment: negative


Review: but first , you have to give the audience a reason to want to put for that effort