MATT DAMON and LUCIANA BARROSO

The Bourne Ultimatum star and wife Luciana will welcome the new addition to their family later this year (08).

Damon's spokesman Jennifer Allen tells People.com, "They couldn't be happier. They're so excited!"

The couple announced the news after attending the Empire Film Awards in London on Sunday night (09Mar08).

They already have a daughter, Isabella, one. Damon is also stepfather to Luciana's nine-year-old daughter Alexia.

Source: WENN