Sources on set told RadarOnline.com that Anna’s revelation came as a surprise to everyone. The ‘Give A Damn’ campaign being run by the organisation launches today (01.04.10) and also features endorsements from Sir Elton John, Cynthia Nixon, Whoopi Goldberg and Sharon and Kelly Osbourne. Anna recently admitted she was “surprised” to have fallen in love with Stephen after they worked together on the US vampire drama series. She said: "Put it this way, I don’t think anyone knew before we did. Clearly there was a reason we were cast in that particular combination but… it’s not like either of us were looking for love or anything trite like that. It wasn’t something we saw happening." Photo: Fame Pictures