Review: are in this tepid genre offering 
Sentiment: negative

Review: the kind of film that could only be made by african-americans because of its broad racial insensitivity towards african-americans 
Sentiment: negative

Review: it 's packed with adventure and a worthwhile environmental message , so 
Sentiment: positive

Review: runs out of steam after a half hour . 
Sentiment: negative


Review: the movie is amateurish , but it 's a minor treat .