A big Thursday night and bigger Friday puts the last “Planet of the Apes” movie of this trilogy, “War for the Planet of the Apes,” into “King Kong” (“Skull Island”) territory — a $55 million opening weekend, based on the $24,000,000 it will have earned before the first showing Sat. AM.

That’s dead-center in the expectations for the dull, dark, glum and over-praised finale to this ambitious and surprising sci-fi franchise.

But there was always going to be a loser in this weekend’s “Spider-Man: Homecoming” second weekend vs. “Apes” showdown. And it’s Marvel’s webslinger.

Friday’s numbers for “Homecoming” point to a $40 (ouch) to $46 second weekend, a 61% to 65% plummet. Right in the kisser. A big drop is to be expected when a movie opens at over $117 million. But that’s steep enough to suggest little repeat business, middling word of mouth and an exit-by-August. If that holds up, next weekend could be under $20.

“Despicable Me 3” for instance, despite being merely a middling sequel in a summer riddled with them, is holding audience (in the absence of anything other than Pixar’s dreadful “Cars 3” to steal kiddie/family audience share. It is in the middle of adding another $21 million this weekend.

“The Big Sick,” a much-praised dramedy built around the life and comedy of Kamail Nanjiani, is doing quite well in its first weekend of wide release — over $8.5 million.

Conversely, the not-scary/kinda-funny “Wish Upon” horror film is flopping and will be lucky to pull in $4 million for Broad Green.