The 48-year-old actor was spotted with Chapman at LAX on Thursday with her kids in tow.
As Weinstein rots in prison and faces even more charges when he gets extradited to Los Angeles, he's going to have to live with the fact that another man is stepping into his role as dad.
Brody and the former Mrs. Weinstein looked like one big happy family as they exited the airport with India, 10, and Dashiell, 8.
The couple -- who made their public debut last month -- couldn't keep their hands off each other.
Brody was spotted with his arm around Chapman's neck while guiding her and her children past oncoming traffic.
The family kept it casual with their travel attire.
The former beauty queen was photographed rocking tight jeans, a white t-shirt, and an olive green cargo jacket.
Brody sported sweats, a camouflage-print shirt, and a New York Yankees baseball cap -- a ballsy move after landing in the city of the World Series champs.
As for the kids, they looked relaxed and happy in Brody's care.
Chapman began dating The Pianist actor in February 2020.
Weinstein's ex-wife looked proud to show off her man at Tribeca Film Festival in New York City.
She clearly wasn't sweating the news about the former Hollywood producer's upcoming extradition.
As Radar reported, a judge in New York ruled Weinstein will be extradited to California to face additional rape and sexual assault charges.
That means the kids will have plenty of time to get cozy with Brody because their dad isn't getting out of prison anytime soon.
Weinstein is heading to L.A., where his fate could include a possible 140-year sentence.
The mogul's lawyers had been fighting the extradition, arguing their client needed to remain in the Big Apple to get proper medical care.
Weinstein's extradition may happen as early as mid-July.