this film should have been much better than it was. christopher eccleston is an excellent actor but even he couldn not rescue this tale of a young woman searching for the truth over her sister death. spoiler warning represent in effect the truth is that the older sister ( played by diaz) is just a spoilt and selfish and shallow girl who took too many drugs. not much of a twist and not that interesting either. the film is also overladen with far too many flashbacks and voice overs and lacks dramatic pacing. all in all this is definitely worth missing  not to be recommended. 
this film should have been much better than it was. christopher eccleston is an excellent actor but even he couldn not rescue this tale of a young woman searching for the truth over her sister death. spoiler warning represent in effect the truth is that the older sister ( played by diaz) is just a spoilt and selfish and shallow girl who took too many drugs. not much of a twist and not that interesting either. the film is also overladen with far too many flashbacks and voice overs and lacks dramatic pacing. all in all this is definitely worth missing  not to be recommended. ---------------------------------Answer Question Below----------------------------------

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