The three-year-old commanded attention with his cuteness as he pulled back the rope that guarded Orlando's star and enjoyed a lollipop during his father's speech.
The resemblance between Orlando and Flynn was highlighted with their coordinated blue outfits: dad wore a royal blue suit paired with a plain white shirt, and son wore a striped blue shirt and denim. Both Blooms currently sport long, tousled brown hair.
Flynn is Orlando's son with ex-wife Miranda Kerr. The couple split last October after three years of marriage.
"We love each other," Orlando told Katie Couric soon after the breakup. "We're a family. We're going to be in each other's lives for the rest of our lives... we're going to support one another and love each other as parents to Flynn."
Orlando Bloom will next appear in The Hobbit: There and Back Again as Legolas. The movie will debut December 17 this year.