a good idea let down by heavy handed production. quite a bit of the dialogue was unintelligible because of the level of music or background sound and and this do not help this reviewer. nor did the welsh accents and pretty impenetrable at times. towards the end i lost the will to live trying to follow the dialogue. this movie do not know whether to be a farce or a black comedy  and they require different approaches. some of the incidents were laid on so thick that they only merited a groan and some were so unbelievable even for this sort of plot that they made the story just not worth following. the acting was in the main good  although the american just came over as a clone of the back to the future mad scientist. the little boy was very good. i did watch it all the way through but god knows why represent i can not remember laughing once. 
a good idea let down by heavy handed production. quite a bit of the dialogue was unintelligible because of the level of music or background sound and and this do not help this reviewer. nor did the welsh accents and pretty impenetrable at times. towards the end i lost the will to live trying to follow the dialogue. this movie do not know whether to be a farce or a black comedy  and they require different approaches. some of the incidents were laid on so thick that they only merited a groan and some were so unbelievable even for this sort of plot that they made the story just not worth following. the acting was in the main good  although the american just came over as a clone of the back to the future mad scientist. the little boy was very good. i did watch it all the way through but god knows why represent i can not remember laughing once. ---------------------------------Answer Question Below----------------------------------

Judge the movie review above, you need to make a function call:
    If you feel the movie review is positive
        print "This is a semantically positive review."
    Otherwise, if you feel the movie review is negative
        print "This is a semantically negative review."
