In the book HP and the Deathly Hallows, Harry, Ron, and Hermione Apparate away from Bill and Fleur's wedding to Tottenham Court Road in London, where they go to a cafe and end up duelling with a pair of Death Eaters before fleeing to Grimmauld Place.
In the film HP and the Deathly Hallows Part 1, more or less the same happens, except that these scenes are set in Shaftesbury Avenue instead.
Both these streets are real London streets, but for some reason the filmmakers chose to change the location. Has any reason been given for this change?