Cheyenne Mountain Entertainment is a trademark or registered trademark of Cheyenne Mountain Entertainment, Inc. in the U.S. and/or other countries. Stargate, "Stargate SG-1," "Stargate Atlantis," reference, characters, and images from the film and television series are copyrighted by MGM Television Entertainment, Stargate Productions, and Sony. All other trademarks or tradenames are the property of their respective owners. Stargate SG-1TM and © 1997 — 2006 Metro-Goldwyn-Mayer Studios, Inc. All rights reserved. SGWGame.com and stargateworldsgame.com are a Stargate Worlds fan based site.