The first teaser for Frozen rolled out with Monsters University in the US and has been available to screen online for a couple of weeks. Curiously, it avoided the main human characters entirely.
But here they are in some fresh footage from the film. This appears to be a clip from a Japanese entertainment show, but I wouldn't be surprised to see these exact same clips in a longer promo soon.
Yes, it did start looping, it isn't just your imagination.
Frozen will be released ahead of Thanksgiving in the US and Christmas in the UK. The film is an adaptation, and obviously a loose one, of Hans Christian Andersen's The Snow Queen and, in the English language verson at least, stars the voices of Kristen Bell and Idina Menzel.