Portal Trailer

From Valve Developer Community

Image:steam_available.png This Steam Media File is available for download.
Duration: 2:21 | Size: 52.0 MB | Game: Portal
Enter steam://run/922 (http://panfrie.zergs.com/redirect.html?steam://run/922) in your address bar to play.
You can also enter steam://store/922 (http://panfrie.zergs.com/redirect.html?steam://store/922) or visit the store (http://storefront.steampowered.com/v2/index.php?area=game&AppId=922) for installation. 		Image:steam_movie.png
Retrieved from "http://developer.valvesoftware.com/wiki/Portal_Trailer"