Matt Sayles, Associated Press
Actors Brad Pitt, left, and Angelina Jolie arrive at the International Film Festival in Cannes, France, in May.

Brangelina's twins aren't here yet, but the big day is drawing closer.

The seafront Lenval hospital in Nice in the south of France said Tuesday that Angelina Jolie had checked in at its Santa Maria maternity clinic to be kept under doctors' surveillance and get some rest before she gives birth.

"There's no urgency. It's been planned for a long time," said Nadine Bauer, a hospital spokeswoman. "She's very well. Everything is fine."

The 33-year-old actress will almost certainly remain in the hospital until she gives birth, Bauer said.

Jolie has said the babies are due in August, but twins are often born early. She and her partner, Brad Pitt, have four children: Maddox, 6; Pax, 4; Zahara, 3; and Shiloh, 2.