A countdown clock was erected in March 2011, although engineering and weather-related faults caused it to stop a day later. In 2007, it hosted the opening ceremonies of the Tour de France and was part of the course for subsequent races. The Sea Cadets hold a yearly Battle of Trafalgar victory parade running the north of Whitehall, from Horse Guard's Parade to Nelson's Column. As an archetypal London location, Trafalgar Square featured in film and television productions during the Swinging London era of the late 1960s, including "The Avengers", "Casino Royale", "Doctor Who", and "The Ipcress File". It was used for filming several sketches and a cartoon backdrop in the BBC comedy series "Monty Python's Flying Circus". In May 2007, the square was grassed over with 2,000 square metres of turf for two days in a campaign by London authorities to promote "green spaces" in the city. In July 2011, due to building works in Leicester Square, the world premiere of the final film in the "Harry Potter" series, "Harry Potter and the Deathly Hallows – Part 2", was held in Trafalgar Square, with a red carpet linking the squares. Fans camped in Trafalgar Square for up to three days before the premiere, despite torrential rain. It was the first film premiere ever to be held there. A Lego architecture set based on Trafalgar Square was released in 2019. It contains models of the National Gallery and Nelson's Column alongside miniature lions, fountains and double-decker buses. Trafalgar Square is one of the squares on the standard British Monopoly Board. It is in the red set alongside the Strand and Fleet Street. Several scenes in the dystopian future of George Orwell's "Nineteen Eighty Four" take place in Trafalgar Square, which was renamed "Victory Square" by the story's totalitarian regime and dominated by the giant statue of Big Brother which replaced Nelson. The square has seen controversy over busking and street theatre, which have attracted complaints over noise and public safety. In 2012, the Greater London Authority created a bylaw for regulating busking and associated tourism. In 2016, the National Gallery proposed to introduce licensing for such performances. A Trafalgar Square in Stepney is recorded in "Lockie's Topography of London", published in 1810. Trafalgar Square in Scarborough, North Yorkshire gives its name to the Trafalgar Square End at the town's North Marine Road cricket ground.