Sneak Peek! Child Stars: Then & Now

Find out where Kirk Cameron, Blossom's Mayim Bialik, the Charles in Charge girls and more child stars are in this excerpt from PEOPLE's new book, in stores June 23!

PETER BILLINGSLEY

Now: He's the (mostly) silent member of the Vince Vaughn-Jon Favreau comedy cartel. After meeting Vaughn when the two costarred on an after-school special in 1990, Billingsley, 43, has since directed Couples Retreat (starring Vaughn and Jason Bateman) and executive-produced Iron Man (directed by Favreau).