yeah, Alex said she slapped him several time, (had to do several takes), so much so, Matt was getting red cheeked. Poor Matt! But it's pretty convincing!
Doctor: "Doctor River Song, you bad bad girl, what do you have for me this time" River: *slap* Doctor: "Okay, i'm assuming that's for something i haven't done yet" River: "Yes it is" Doctor: "Good, looking forward to that." OMG Laughed so hard XD
Well then, welcome to the Whovian family! And I love Matt too; he is certainly a very good actor, and one of my favorites to play the Doctor. I'm American actually, but I love things from England and the rest of the UK, especially their television shows. ;D