Review: a very depressing movie of many missed opportunities . 
Sentiment: negative

Review: works spectacularly well ... a shiver-inducing , nerve-rattling ride . 
Sentiment: positive

Review: literary detective story 
Sentiment: positive

Review: an engrossing story about a horrifying historical event and 
Sentiment: positive


Review: i have always appreciated a smartly written motion picture , and , whatever flaws igby goes down may possess , it is undeniably that .