This is a clip from Derren Brown's "The Assassain". Enjoy.
For those of you who have no idea what is going on, the "Assassin" has been hypnotised to assassinate Stephen Fry. This was done to see the extent of control a hypnotist has on his subject. As there have been many stories about people being hypnotised to murder someone, although it is always said that when hypnotised someone can't make you do something you wouldn't want to do.