"At [the] time [we were filming], she was dating Justin Bieber, so it was insane, like, the amount of people who'd be around," Nat points out, "but she handled it with such grace and had such focus as an actress."
"If that ever happens to me, I have a good example in her of how to handle it," he adds.
Nat is certainly close to stardom. For several years, he was on the hit Nickelodeon show The Naked Brothers Band, and now he has a bunch of movies coming out, including this weekend's Admission opposite Tina Fey and Paul Rudd.
Nat says he loved filming the movie with Tina and Paul.
"I was super intimidated before I got there, but once I got there, they made me feel like I belonged there," he says. "Paul Rudd was just as friendly as he is in movies."
Actually, Nat sounds pretty darn friendly himself, too.