From www.wdwinfo.com

Marvel subpoenas Google to release identity of person who leaked Avengers trailer
Nov 6, 2014

Marvel Studios was planning to release the trailer for its upcoming Avengers: Age of Ultron film during ABC's Agents of S.H.I.E.L.D. last week, but the video was leaked by an unknown user a week early. Right after the leak, Marvel went ahead and released the official trailer, which broke streaming records, reaching 34.3 million global views in less than 24 hours.

However, Marvel has now had a federal judge subpoena Google for "all identifying information for the user 'John Gazelle,'" the Google account that leaked the trailer. Google has until November 18 to produce the information.