Review: it 's hard to imagine acting that could be any flatter . 
Sentiment: negative

Review: , what a thrill ride 
Sentiment: positive

Review: begins with promise , but runs 
Sentiment: negative

Review: of the ` laughing at ' variety than the ` laughing with 
Sentiment: negative


Review: works smoothly under the direction of spielberg , who does a convincing impersonation here of a director enjoying himself immensely .