It's the latest DW series, all recapped in two minutes, to Offenbach's Can-Can music. Yes, there will be spoiler images (although they all do zoom by in seconds) if you have not seen all of the series as yet. Some wonderful editing in this fab fan-made video. My gosh, the sheer work in something like this boggles me.
Bit hat tip to Life, Doctor Who and Combom blog.