Naomi Watts's son Sasha Shreiber looked so grown up and handsome in rare 18th birthday photos shared by his proud mom on Friday, July 25. See the photos, here.

Naomi Watts brought her son, Sasha, as her plus one to the New York Film Festival premiere of her new movie, 'The Friend.' She shares her two kids, including Kai, with ex Liev Schreiber.