Naomi Watts has given birth to a baby boy.

Alexander Pete Schreiber was born Wednesday in Los Angeles and weighed 8 pounds, 4 ounces, Watts' publicist Robin Baum said Thursday.

It's the first child for the Australian actress and her boyfriend, actor Liev Schreiber.

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Watts, 38, and Schreiber, 39, co-starred in last year's "The Painted Veil."

Watts also has starred in "King Kong," "Mulholland Dr.," "The Ring" and its sequel. Schreiber's credits include "The Manchurian Candidate," the HBO movie "RKO 281" and the Broadway play "Talk Radio."

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