For some reason you saying that makes me think about one group interview he took part in (there was also Julianna Margulies and other american actors) where at some point the interviewer nicely teased him about the fact that he could never be a spy because he is so noticeable (being tall, handsome and famous!), and while the others agreed, laughing, to that statement, Tom softly replied "oh I can be invisible, trust me". His tone seemed a bit sad, and I felt that.(and maybe he does, he really could be a spy with the ability not to show for a week and then pop up randomly )
But maybe I read too much into it.
Has anyone seen that interview? Am I imagining things??