A new trailer for the Doctor Who: The Day of the Doctor 50th anniversary trailer appears to have been leaked online. A Facebook page for BBC Latin America posted the video late Friday afternoon, with new footage from the series dubbed in Spanish. Previous trailers have teased huge revelations in the upcoming special, including the reappearance of Rose and the possible revelation of the Doctor's name. The new trailer also features David Tennant (the Tenth Doctor) with the special promising to be Matt Smith's last episode playing the character, pending the hand-off to Peter Capaldi.

The BBC has been hyping Day of the Doctor as a truly global event: the special will air simultaneously in more than 75 countries across the globe. In the UK it's scheduled for November 23rd at 7:50PM, which works out to 2:50PM ET and 11:50AM for Doctor Who fans on the west coast of the US. A limited number of movie theaters will also be joining in, showing the episode in 3D at the same time it airs.

Update: We've removed the clip at the request of the BBC. Two new Doctor Who trailers will be debuting officially this weekend — so jump in your TARDIS and take a look then.