Anne Hathaway is blossoming!

The 43-year-old actress, who is expecting her third child, showed off her baby bump in a striking silk crop top and jeans at the world premiere of her new film The End of Oak Street in Los Angeles on Sunday, Aug. 9.

Hathaway wore a custom Atelier Prabal Gurung sculptural halterneck top with a high-low hem — revealing her baby bump — and a cascading train in light blue silk Mikado with a crimson lining, paired with baggy low-rise jeans and red and pink stiletto pumps from Aquazzura.

The actress accessorized her chic maternity look with embellished drop earrings and a stack of gold and crystal-embellished bracelets. She wore her hair in a high ponytail and sported bright red lipstick to match the crimson of her top.

Hathaway announced that she is pregnant with her and her husband Adam Shulman’s third child in a video on her Instagram on June 19. The couple also shares sons Jonathan, 10, and Jack, 7.

In an exclusive chat with PEOPLE at the premiere on Sunday, Hathaway opened up about how pregnancy feels different this time around in her 40s.

“You know, I was in my 30s with my other two, and I’m so different now …. something happened when I turned 40,” the Oscar winner says. “I just realized that this isn’t a dress rehearsal. It’s all real. I’m not, like, saving it up for my future self. It’s all happening right now. And so I think I’m just better at being present in the moment, living in gratitude, not taking anything for granted.”

“So I think all of those things are coming together, and it’s a real time to enjoy,” adds Hathaway.

In the new science-fiction mystery The End of Oak Street, Hathaway stars alongside Ewan McGregor as a couple whose family comes face-to-face with dinosaurs in their neighborhood.

Hathaway told PEOPLE at the premiere that filming was a thrilling experience.

“I was in the most amazing cast. I loved these people so much. Everybody looked after each other, because we were shooting in Hotlanta,” she says. “It was like this every single day. I mean, running and screaming. But then we would go back to our little actor tents, and we would just, like, howl with laughter.”

“Everybody was so involved in each other’s lives and open, and it was just a real joy,” The Princess Diaries star recalled. “So it was kind of like Dinosaur Camp.”

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