Here's a breakdown:
* Each star represents a full point on a 5-star rating scale.
* The stars are filled in proportionally to the average rating. For example, a 4.5-star rating would show 4 full stars and one half-filled star.
* The number of user reviews is also displayed next to the stars. This gives you an idea of how many people have rated the title.
Note: The yellow stars are different from the maturity ratings, which are represented by different icons (like a "TV-MA" or a "PG-13").
Let me know if you have any other questions!