Kristen Stewart as Ring Toss Girl in Flinstones:Viva Rock Vegas (2000)
Blink and you'd miss Kristen Stewart in this Flintstones movie. Don't worry, we'd probably miss her too, considering you don't get to see the then-10-year-old Stewart's face.
Fast forward 13 years later and that Ring Toss Girl is the most talked about, and highest paid actress, of her generation. Oh how time changes everything.