An unnamed source has confirmed a few things from the TV spot released last night. They are spoilers, including how the ring gets slipped on in Bree. Highlight to read:

– That is a shot of Sauron as he faces the Last Alliance.

– The shot of Frodo on the floor with the ring tumbling towards him is in the Prancing Pony in Bree. In this amazing slow-motion shot, the ring “accidentally” lands on the finger of the Hobbit’s outstretched hand, after he’s fallen from the table. An interesting illustration of the ring’s “will.”

– The Black Riders are indeed riding out of Mordor.

I have updated the Frame by Frame to reflect this new information.