James Frain is in the film with Rob, and recently said the world of the undead.. never came up in their conversations:
"My scenes were with Robert Pattinson but I'm sorry to say we didn't swap vampire stories. I wish we had.Read the rest.
"People can't believe there's going to be a scene in the movie with a Twilight vampire talking to a True Blood vampire and that we didn't spend our time chatting about that, but I'm afraid not. I wish I'd got vampire tips from him, I wish I'd gone 'Oi, Bob mate, any tips?'."
But James was full of praise for Robert, saying: "He's sweet, quite shy, just a really good guy."