http://www.scotusblog.com/2010/04/court-to-rule-on-violent-videos/best part is the name of the case:
The Supreme Court agreed Monday to rule on the constitutionality of a state law banning the sale or rental of violent video games to minors. The Court accepted for review an appeal by the state of California, urging the Court to adopt a new constitutional standard that would enable states to ban such games for those under age 18. The case is Schwarzenegger v. Video Software Dealers Association (08-1448).