I love google, but I love statistics more
I started to read the comments and the 70% likes ratio didn't make sense to me. So with 202 comments it was easy to count the comment section ratings and find out if numbers where close to the ratio posted by google. The results:
likes 53 26%
dislikes 64 32%
no rated comments 85 42%
Total reviews 202
This make a 45.3% people liked the movie / 54.7% people disliked the movie. This is a small sample, but I think it will give a more realistic ratio considering the likes and dislikes business behind.
Google, you're awesome but remember that trustworthiness is your greater asset