T3: Rise of the Machines

Teaser trailer for Terminator 3, Rise of the Machines. When you hear the words teaser trailer, it means that someone takes music from the previous films, whips up something in a digital animation program (usually its a bunch of moving logos or patterns that end up forming the title font for the next film), and releases it to great hype. It is a fancy way of telling people the date when your film will release. In fact, this trailer is almost exactly the same as the X-Men 2 teaser trailer floating around the web.
T3 comes out July 2, 2003, if you really want to know.