hi i was looking up sites for spoilers and fond this site

blogtorwho.blogspot.com/2010/02/vampires-of-venice-script-excerpt.html

why the at the end there?

Some nice dialog in that script extract. Rory must be a bit bemused, especially after The Doctor jumps out of a cake at his stag do to whisk him off on a trip in the tardis....

Is it just me or do the vampires mouths look more like prisoner zeros than normal vampires.