Here's the London IMAX, which is partially underground, beneath a roundabout. I walked through the other day, and with the sun streaming in, it was just too gorgeous not to take a pic. I think I will spend the night here one night in November, where they are showing all three installments of Lord of the Rings back to back to back. Twenty-five quid to sit in the theatre from 8pm to 6am but I think it might be worth it. To be a fan of these movies is to be hard core, so....