Yes 'like' may not be the correct terminology but something that indicates a recommendation since you can also write comments that are a vote not to see the mov

Yes 'like' may not be the correct terminology but something that indicates a recommendation since you can also write comments that are a vote not to see the movie (edit: you also need to add the favorit button on the page that shows the list of movies you have seen : http://watchth.is/my-movies/seen http://watchth.is/my-movies/seen)