The Rachel McAdams/Dylan O’Brien “Castaway” with a whiff of “Misery” “Send Help” is opening to decent reviews and audience exit-scores (Unlike critics, audiences pick a movie that they expect they’ll like) and a $17.5 million opening weekend.

That’s good enough to best the indie video game turned feature thriller “Iron Lung,” which is doing really well among gamers despite having a no-name cast, including the director, and little more than word of mouth promoting it. It may hit $17 million, depending on the snowy day turnout in the Southeast and elsewhere.

Meanwhile, out in the Pedophile Protector Belt of rural America, “Melania” is doing big bucks. The pervy Brett Ratner-directed documentary about sex-worker/ illegal immigrant First “Lady” from the former Soviet Empire is on track to earn $8 million from people whose internet search histories you wouldn’t want to stumble through. Audience exit scores are reverse IQ tests in this case, as this one is earning savage reviews from the better educated. At least it gets “them” out of the house, because heaven knows what goes on there, right?

“Zootopia 2” is in fourth, adding another $5.8 million to its $408 million and counting tally.

“Avatar: Fire and Ash” is winding down with a $5 million weekend and may cling to fifth place.

That would be bad news for Jason Statham, who has made bank in previous Januaries with J-Stath-styled action/avenging. “Shelter,” distributed by tiny outfit Black Bear isn’t even cracking the top five ($5 million over the weekend, in sixth).

The tumbling Chris Pratt bomb “Mercy” ($4.9), Sydney Sweeney’s blockbuster “The Housemaid” ($3.3, over $120 million since release), the Oscar contender “Marty Supreme” ($2.4, closing in on $100 million) and the bombing “28 Years Later: Bone Temple” finish off the top ten, unless a lot of people realize they need to see “Hamnet” by midnight Sunday.