The BBC have now posted the official trailer to Doctor Who, The Day Of The Doctor online.
The first trailer was due to have its premiere later on tonight on BBC One at 8pm GMT, with a simultaneous broadcast on BBC America. However, BBC Entertainment Latin America appear to have posted the clip in error early last night.
It is not clear whether the clip was the one due to debut tonight or the second preview promised for Sunday night on BBC One.
Watch the trailer here: