Warner Bros. has sent HPANA the official teaser poster for Harry Potter and the Order of the Phoenix which features Voldemort with the heading "You Will Lose Everything." The teaser trailer for the movie will premiere in front of Happy Feet this coming Friday.
You can see the teaser poster featuring Voldemort here.
Also thanks to TLC for letting us know that the teaser trailer will be rated PG in the UK with a running time of 54 seconds. No news on which movie it will be attached to though.