It might be one of these mysteries we will never get an answer to. A bit like the strange fact that all the trees down the west side of Kennington Road have little plaques with the names of astronauts on them about 10 ft off the ground. The only answer I ever saw about why this was that made any sense was that if they were any lower down people would steal them.
The silver surfer appeared this morning although I thought it was Spiderman at first! Apparently it's all for the premiere which is on tonight - featured on London Tonight apparently, although I didn't see it.