Conversation so far:
Who played rusty in national lampoon's european vacation
Jason Lively played Rusty Griswold in National Lampoon's European Vacation.
who played Clark in National Lampoon's European Vacation
Chevy Chase played Clark Griswold in National Lampoon's European Vacation.

Question: what is the rating on IMDb
Self-contained rewrite: what is the rating on IMDb for National Lampoon's European Vacation