Review: are incredibly captivating and insanely funny , thanks in part to interesting cinematic devices ( cool visual backmasking ) , a solid cast , and some wickedly sick and twisted humor ... 
Sentiment: positive

Review: failed jokes , twitchy acting 
Sentiment: negative

Review: diesel is n't the actor to save it . 
Sentiment: negative

Review: brain strain 
Sentiment: negative


Review: not a film for the faint of heart or conservative of spirit , but for the rest of us -- especially san francisco lovers