27 January 2015, 11:01
Passengers on the London Underground were stunned to see an eight foot polar bear climb aboard a train.
The giant bear, created by Hollwood special effects experts FX, was spotted at Charing Cross tube station, as well as Hampstead Heath and the South Bank of the Thames.
The huge puppet was made by a team of 19 prop specialists and made from more than 60 different materials including 90 sq ft of white fur.
It was controlled by two puppeteers who spent weeks studying footage of real polar bears in the wild before spending five days rehearsing with the device.
