2nd Update, Friday:*Sony Animation’s*Hotel Transylvania 3: Summer Vacation*as expected will lead the box office this weekend with an opening now estimated between $40M-$42M off a $14M-$16M Friday. Meanwhile, Dwayne Johnson vehicle*Skyscraper*might be a movie that’s about a high rise that’s up in flames, but its opening weekend is looking pretty chilly right now with a $7.5M Friday and a 3-day between $19M-$21M in third. These are industry estimates and do not come from…

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