Escaped the cold and wet by going to the IMAX cinema, near Waterloo Station, on Saturday. Would highly recommend it. Both sons, toddler and nearly 7-year old, were entranced by the reach-out-and-grab-you 3D effects. So was I. We were all reaching out to clutch the imaginary objects that seemed to be floating past a few inches from our faces. Toddler wouldn't wear the 3D glasses, of course, but loved the general impression - the film only lasted an hour, so not too long to lose interest. The sound wasn't too loud or frightening either. There seemed to be lots of groups of 5 -10 year olds there, so might take my son and his friends there for his 7th birthday treat.