Two unknown film makers will battle Steven Spielberg and Luc Besson in a bid to win London the Olympics Games.
Steven Spielberg will make the New York team's film
Caroline Rowland and Darryl Goodrich are making the film that will be shown to International Olympic Committee members hours before the deciding vote.
The pair are from New Moon Productions in Soho, central London, which produced the award-winning Make Britain Proud - also for the London 2012 bid team.
Besson is making Paris' film and Spielberg will make New York's.
Details about the content of the London film are being kept secret.
A spokeswoman for New Moon Productions said: "It is all very exciting. Caroline particularly is buzzing about it.
"To be part of something like this and to be chosen to work against such film greats as Spielberg and Besson is a great honour."
Make Britain Proud won the Grand Prix prize at the International Visual Communications Awards.
It starred a host of celebrities including David Beckham, Jeremy Irons, Joseph Fiennes, Dame Helen Mirren, Sir Roger Moore, Matthew Pinsent and Kelly Holmes.
The International Olympic Committee will announce which city has won the right to host the 2012 Olympic Games in Singapore on 6 July.
Madrid and Moscow are also in the race to hold the Games.