Paul Shapiro spotted a new Google search tests and posted the screen shots on Twitter of the "top voted tags" section. In short, you may be able to replicate this by searching for movies. Google will launch the movie rich result at the top of the page and then if you scroll down, you may see a new section for "top voted tags." FYI, I do not see this feature.
It says you can "help others decide by choosing the best tags, like strong acting, unconvincing or gripping." You can launch it by clicking on the "vote for tags" button.
Here is the overview screen with the button:
When you click it, it launches these buttons:
This will give Google more data about the movie for Google to share with people searching for more details about the movie.
Forum discussion at Twitter.
