The bizarre tale of how two men created a hoax alien autopsy in Ridgmont – using a bucket of giblets and a 12-year-old wearing a mask – has hit the big screen.

Keith Bateman and Andy Price-Watts, who ran a karaoke company in Milton Keynes, captivated the world with a film which purported to be a genuine autopsy, held in 1947, at a UFO crash site at Roswell, New Mexico.

In fact, the clip was filmed 47 years later in a barn in Bedfordshire, and the 'alien' was Price-Watts's 12-year-old son.

Now the whole mysterious saga has been adapted for a film, unsurprisingly entitled Alien Autopsy, starring Geordie duo Ant and Dec.

Both Price-Watts and Bateman have disappeared from Milton Keynes, in something akin to an alien abduction.

However, video producer Bruce Barlow, who was involved in the hoax when he included the clip in a documentary he made about aliens, has been traced.

Mr Barlow, 64, of Leighton Buzzard, said: "Yes, I will go to see the film because it was something I was connected with and it will be interesting to see how true it will be.

"People like that sort of thing and I think it will do quite well."

He added: "I suppose it was fairly convincing. It was shot quite cleverly because it was very grainy and frames are taken out to make it jumpy. It whipped up everyone's interest.

"All we said was we were approached by someone and did not know whether it was genuine, and put about three to four minutes of it on the end of our documentary."