Review: imagine acting that could be any flatter 
Sentiment: negative

Review: could have been crisper and punchier 
Sentiment: negative

Review: provides a satisfactory overview of the bizarre world of extreme athletes as several daredevils express their own views . 
Sentiment: positive

Review: ... the maudlin way its story unfolds suggests a director fighting against the urge to sensationalize his material . 
Sentiment: negative


Review: exceedingly memorable one