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There is no objectively good movie, there are only movies you find subjectively good, and movies you like to watch.
That there is a difference between these two things, doesn’t mean one is objective.
Any quality of the movie you choose to measure, and any way to weight these properties to get a global measure of goodness, is arbitrary.
Sometime even the way to measure a particular quality is subjective.
There are plenty of movies who didn't do well in the box office but are critically acclaimed.
What makes a movie good are having all of these on point: