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From left, Bill Hader and James Ransone have some funny moments in “It Chapter Two.” (Courtesy Warner Bros.)

At two hours and 49 minutes, “It Chapter Two” is among the longest Hollywood horror movies in history. (Ari Aster’s director’s cut of “Midsommar” is two minutes longer.)

The length is both a setback and asset, as it allows plenty of time for the characters to come to life.

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