Man on Wire 2008 British documentary film directed by James Marsh. The film chronicles Philippe Petit's 1974 high-wire walk between the Twin Towers of New York's World Trade Center. It is based on Philippe Petit's book.
Telling the story of Philippe Petit's high-wire act across the World Trade Center required an amazing amount of VFX. In this fantastic BTS video with VFX Supervisor Kevin Baillie, we get a sense of how much work was required to bring the film to life:
Revisit the World Trade Center in The Walk  trailer