What no one seems to understand but I figured out at once, is that Brian IS that famous actor and he wants to be anonymous so he won't be spilling the beans.
He is
posing as a poet (and doing a great impersonation too) to escape the paparazzi.
However that scheme didn't work as well as he hoped, because Duncan, aided and abetted by Jayne, tracked him down in Paris, and teh same time leading heaven knows how many camera fiends to the hideaway, and TWO photos are now on view to millions of Eratosphere devotees and a handful of smirking, lurking unfriends, all asking the same question: doesn't he look like, what's his name, Baron Olivier, or wait a minute, isn't he the spitting image of Robert De Niro?
I didn't know Robert De Niro wrote poetry!