Environmentally friendly actor Woody Harrelson was left shaken after almost being run down by a London bus while cycling through the heart of the British capital.

The WHITE MEN CAN'T JUMP star, who is currently starring on the stage in London's West End, looked the wrong way before setting off and narrowly escaped being crushed by the bus.

He says, "It's so ingrained in me to look left and then right before I set off on a bike.

"I was in Oxford Street and looked left and set off and a bus came up right behind me and missed me by about a millimetre.

"It was pretty scary but it's still much easier travelling by bike than by taxi."