It is obvious that one user posted of the exact same review a zillion times in attempt to sabotage the movie’s rating, no doubt because he has a partisan grudge against President Obama.
Note how many reviews begin with the words “zero stars should be an option“ and/or “horrible movie“. It’s obviously the same guy copying and pasting the same fake review using different usernames (or perhaps a number of like-minded right-wingers conspiring together to post the same junk review, and lower the rating).
And as a result, the movie has a current rating of just 1.9, and no doubt reflects little but the opinion of that one individual or his partisan group, so it’s useless in reflecting the actual public opinion, or advising potential viewers about whether or not they should see the movie.
Google needs to do a better job of monitoring their reviews. If they had, they would’ve caught this obvious attempt to distort the results.