http://supct.law.cornell.edu/supct/html/00-795.ZS.html
...The CPPA also prohibits speech having serious redeeming value, proscribing the visual depiction of an idea�that of teenagers engaging in sexual activity�that is a fact of modern society and has been a theme in art and literature for centuries. A number of acclaimed movies, filmed without any child actors, explore themes within the wide sweep of the statute�s prohibitions. If those movies contain a single graphic depiction of sexual activity within the statutory definition, their possessor would be subject to severe punishment without inquiry into the literary value of the work. This is inconsistent with an essential First Amendment rule: A work�s artistic merit does not depend on the presence of a single explicit scene. ...
