The clothing store GAP is offering the chance to one child in the UK, aged between 7 and 13, to win a day on set in the UK during the shooting of The Subtle Knife movie, including a ‘walk on part’ as an extra, although the part will be non-speaking.

To apply, you need to visit your closest GAP store and pick up an application form (click on thumbnails below to enlarge images of application form), and describe in 50 words or less why you would like to win. The deadline for applications (which must be left in store) is December 22nd. 20 applicants will shortlisted and asked to submit an audition tape during early 2008, after which a winner will be selected. The prize includes standard class return train travel from the winner’s nearest train station and two nights hotel accommodation, for both the winner and their parent or guardian.

GAP does not guarantee that the ‘walk on’ will make the final cut, and have anticipated the possibility of no movie being made with the statement that there will be an alternative prize (a trip to Los Angeles to record a screen test) if the movie does not go into production before March 2009.