- it's gonna screen on December 28 and 29 at 7.30pm local time (it's not a two-parter tho)
- you can purchase tickets here; beginning November 13
- it's expected to screen in about 300 cinemas
- it's gonna include an exclusive interview with Alex Kingston + a 15-minute behind-the-scenes
- yes, River Song comes back (Clara is gone by then)
It’s Christmas Day in the future and the TARDIS is parked on a snowy village street, covered in icicles, awaiting its next adventure. Time traveler River Song meets her husband’s new incarnation, in the form of Peter Capaldi, for the first time this Christmas.
source
Mods, I re-sized and uploaded the picture :)