"Marc Toberoff is an intellectual property attorney specializing in copyright and entertainment litigation.He is known for representing the estates of Superman\u2019s co-creators, Jerry Siegel and Joe Shuster, in ongoing litigation with Warner Bros. and DC Comics over the original copyrights to Superman. The lawsuit has become a seminal case regarding the Copyright Act\u2019s termination provisions, which permit authors and their estates to recover their copyrights after lengthy time periods."@en .