I hope you will find some people here then for conversation. Unfortunately it has gone rather quiet with the end of HP and Emma's more grown-up film projects.
I probably saw him in more roles than I can remember right now. My earliest memory must be seeing him in the 1984 version of Orwell's "1984"....we watched that movie in school back in '85 or so and also read the book. RIP John Hurt.
Maybe stay at the airport the entire weekend and hope she wants to go somewhere or comes home ? Your chances might actually be better there than in London itself