Last Tango, Then Paris
Forget the UK promo though I don't think anybody can unsee that, there's already a Season 4 spoiler from Leighton's interview:
S: Do you have any other upcoming projects you can tell me about?
LM: I just finished a movie yesterday called “The Oranges.” Tonight we’re going to a venue to talk about Herbal Essences in Western Europe. And then I start a movie next week called “Monte Carlo,” so I’ll be in Europe for a couple months and then I start “Gossip Girl” again. We’re going to be shooting the first episode-I don’t know if I should tell you this-in Paris.
S: Do you have any other upcoming projects you can tell me about?
LM: I just finished a movie yesterday called “The Oranges.” Tonight we’re going to a venue to talk about Herbal Essences in Western Europe. And then I start a movie next week called “Monte Carlo,” so I’ll be in Europe for a couple months and then I start “Gossip Girl” again. We’re going to be shooting the first episode-I don’t know if I should tell you this-in Paris.