easy with a code change

edit MMM-MovieListings.js

    pageChangeInterval: 30 * 1000,
    showRatings: true                                      // < -- add this line, line 25, notice the comma on the line before 

add this line

    // Add all details
    if(config.showRatings)                   // < ---- line 235

save file

then add to your config.js for this module

   config : { 

     showRatings: false, 

when u select it, the class tree will be shown at the bottom of the dev window nav, above the console area. the classes themselves will be shown on the right. top closest to the element, the bottom furthest away.

this might help you find the css element to use adding

display:none;

in custom.css
to make the content no longer shown

u can test that by live editing the styles of the element to add that display setting