Hollywood Docket: Cameras in Supreme Court?; singer vs. Led Zeppelin; 'Pros vs. Joes' idea theft?

• Cameras might eventually be allowed to tape Supreme Court proceedings. Nominee Elena Kagan voiced her enthusiastic support during confirmation hearings Tuesday, following others like Justice Sonia Sotomayor. [WSJ]

• American folk singer Jake Holmes is suing Led Zeppelin for violating his copyright on a 1967 song "Dazed and Confused," which he says was reworked by the band. It took 40 years to file this lawsuit!? Due to statute of limitations, even if Holmes is successful, he'll only be able to collect damages and royalties for the past three years. [Guardian] 

• A D.C. federal court is hearing arguments today on whether it's proper civil procedure to join thousands of individuals in a single lawsuit targeting anonymous copyright pirates. [BBC] A taste of the arguments being made here and here.

• Another day, another idea theft lawsuit. Two New York men are suing Viacom, MTV, CBS, Spike, ABC and various talent agencies claiming to have come up with the concept behind the sports reality show "Pros vs. Joes." In the complaint, the plaintiffs say they submitted their treatment for a show called "Two Left Feet" to agents and that their treatment proposed a show depicting amateur athletes versus real ones. The degree of similarity between the two show can be no coincidence, say the plaintiffs. Here's the complaint.