MAX RECORDS, 13
Doesn't ruin: Where the Wild Things Are (2009)
Why they don't suck: Most kids could probably pull off the character Max going apeshit with the monsters who adopt him when he runs away from home, but the loneliness that registers on Records' face when his sister abandons him for her friends and his mother ignores him during a date is far from garden-variety child acting. That, and his name is Max fucking Records! Badass!
Child version of: Mark Ruffalo