What does this mean in Spanish to English Translation?

What does "De qué se trata la película?" me in English?What does this mean in Spanish to English Translation?
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"De qué se trata la película?" Is translated as "What is the movie about?" in English. In spanish, "tratar de/tratarse de" is translated as "to speak about/to be about."What does this mean in Spanish to English Translation?
what's the movie about?What does this mean in Spanish to English Translation?
What is the movie
WHAT IS THE MOVIE ABOUT???
What's the movies about?
whats the movie about
what is the movie about

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