The whole production was shot in just 15 days in July 2006, giving a minutes per day ratio of 10 minutes every day. No shooting day overshot by more than one hour even though each day was scheduled for only eight hours. On the final day of the shoot (on Southend beach) 3 and a half hours were lost due to the tide being in. Alexander Fodor totally revised the shots, heavily pre-prepped the actors and charged ahead giving them only one take per shot. The end result being that the day finished 10 minutes ahead of schedule.
There are more things in heaven and earth, Horatio, than are dreamt of in your philosophy.
On the first day of shooting James Frail, playing the ghost, insisted on keeping his blue-eye contact lenses in all the time, even though they had picked up dirt. This resulted in a scratched cornea, with a massive bruising effect looking like a black eye. To get round this you'll notice some scenes where the Ghost has suddenly become "Joe Cool" and is now wearing sunglasses (the director's).