The 'My Little Pony' star opened up to ET about bringing his sons, Samuel Kai, 8 and Alexander, 9, with ex Naomi Watts to the San Diego event.
Schreiber told ET that he and Watts were planning to have lunch together.
The two were reportedly spotted holding hands in New York City over the weekend.
Naomi Watts Opens Up About Her Late Father's Drug Overdose
From Naomi Watts to Ashley Judd, ET spotlights every star-studded cameo.
The actress paid tribute to her work bestie's big birthday with a cute pic of the pair glammed up.
The 48-year-old actress also jokes about having the same bowl haircut as her boys when she was younger.
The 'Book of Henry' star also dishes on whether 'Big Little Lies' was a role that got away.
Trevorrow discusses his "polarizing" post-'Jurassic World' dramedy, 'Star Wars: Episode IX,' and directing Jacob Tremblay.
The 'Ray Donovan' star also opened up about his sons with Naomi Watts.
The late David Bowie and Miguel Ferrer's presence were felt in Sunday's two-part installment.
The actress gets candid about her relationship with her ex, after the two split last September following 11 years together.
It might not be time to bust out your beach towel and sunscreen just yet, but you can get your calendar ready with 20 movies you'll absolutely want to check out this summer.
No bad blood here!
