For what it's worth, Smart People was filmed before Juno (but released later), so to claim that Ellen Page's character essentially reprises her turn as "a wise-cracking adolescent" in a manner "straight from the Juno playbook" is chronologically inaccurate. A technical point more than anything else, but in the movie's defense, it cannot be called derivative on that account.

Adam

(Source of this fact: a very close friend of mine happens to be the co-producer of Smart People.)