The better way is to create this data dynamically. Are you manually editing this sidebar content each time a new movie comes out?
The smart approach would be to code a PHP driven widget that loops through the latest x amount of movies and then (using a radio button field on each movie), use the movie’s rating to render out the amount of stars.
I would create a custom field on each movie to select 1,2,3,4 or 5 as a value.
Then you will need to re-code your sidebar to loop through the movies using a get_posts function.
Since you are new to to WP and PHP, I doubt you will be comfortable coding this yourself. I would recommend that you contact a freelance to write this code for you as the ACF plugin unfortunately requires you to have solid WP and PHP skills.
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