for everyone talking about RT or Cinema Scores, that's a terrible thing to do prior to watching a film. if a film trailer gets your attention enough to want to watch it because you think it looks good, seeing that score is going to bias your opinion.
try watching the movie first, give your opinion if you like it or not, then check its rt score.
honestly, i've been doing it like this for months, and you'll be surprised at how much you'll enjoy a movie.