In which city was U2’s 2009 concert film U2 3D primarily filmed?

U2’s 2009 concert film U2 3D was primarily filmed in Buenos Aires.

U2 3D is a concert film directed by Catherine Owens and Mark Pellington. It was assembled from performances recorded during the Vertigo Tour, including shows at River Plate Stadium in Buenos Aires, Argentina. The film was released theatrically in 2008, despite its title sometimes leading people to associate it with a later U2 era.

The Buenos Aires footage captured the scale and audience energy of U2’s South American concerts. The production used stereoscopic 3D filming and a multichannel surround soundtrack, making it one of the earliest major concert films designed specifically as a 3D theatrical experience.

The film is distinct from ordinary tour documentaries because it focuses on the live performance rather than following the band behind the scenes. Buenos Aires is therefore the key city associated with its principal concert footage.