I am not a lawyer and so none of this information is to be construed as legal advice. This is a collection of legal resources that may be useful to you as an indie filmmaker. As always I strongly recommend that you retain the services of an entertainment attorney whose opinion you trust. The Pocket Lawyer for Filmmakers: A Legal Toolkit for Independent Producers by Thomas A Crowell
Video University article library - a variety of articles, some with legal advice.
Mark Litwak’s Entertainment Law Resources - highly recommended
FindLaw.com - great source for a wide range of legal information
WiredLaw articles - on a range of intellectual property issues