We can actually deduce here that "The new movie, a box office hit" is not a simple subject but a complete subject.
What is a subject of a sentence?
The subject of a sentence is actually known to be doer of an action in the sentence. In other words, the subject carries out the action in a sentence.
We see that the given statement is not a simple subject, but a complete subject. It gives complete information about the subject, Movie.
Learn more about simple subject on https://brainly.com/question/18735
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