Still no baby talk from Pitt and Jolie publicist

Brad Pitt and Angelina Jolie's representatives are still refusing to confirm or deny the actress' reported pregnancy, which was the talk of the Film Independent Spirit Awards on Saturday.

The Hollywood couple arrived 10 minutes before the start of the ceremony in Santa Monica, California - where Jolie was nominated for a Best Female Lead prize.

The pair raced up the 'blue' carpet, refusing all interview requests.

Dressed in a form-hugging black dress, Jolie's belly appeared bloated, prompting further speculation about the actress' condition.

Reports have suggested not only is Jolie pregnant with Pitt's second natural child, but she's expecting twins this time around.

But the couple's spokeswoman, Cindy Guagenti, offers a firm "no comment" on the rumours.

The couple already has one daughter, Shiloh, and three adopted children, Maddox, Pax Thien and Zahara.

Vietnamese orphan Pax Thien, four, became an official member of the Jolie-Pitt family last week after a Los Angeles County Children's Court judge fully approved the adoption.