If you fancy winning a spot as an extra on the film version of The Hitchhiker's Guide to the Galaxy, then you'd better get your camera out and your skates on.

The BBC is holding a competition which asks entrants to submit "a photograph of the place on Earth you think deserves to survive the planet's destruction".

One lucky winner will travel to Elstree to take part in the filming of the movie on 8 and 19 July. The deadline for entries is, however, tomorrow. Full details here. ®