'U23D' premiered at the Sundance Film Festival earlier this month, before going on general release in the US and Canada. It opens in Ireland and the UK from February 22nd.

'Eyepopping' is the verdict of the International Herald Tribune. 'Gives the audience the palpable experience of being present, as the camera swivels around Bono's face, then soars over and down among the 60,000 concert goers.'

'Not merely a technical landmark,' says The New York Times. 'But also an aesthetic one, in that it's the first Imax movie that deserves to be called a work of art.'

Shot during U2's visit to South America on the Vertigo Tour, the film is directed by Catherine Owens and Mark Pellington. Owens says 'this was the ultimate challenge in presenting U2'.

'There is no comparison with a traditional concert film seen in 2D. One minute you are on stage with the band and the next you are at the back of the stadium. 'The best way I can describe it for the viewer is that it's like being on the wings of a bird flying around the concert stadium - it's really something else.'

As the web is not yet in 3D, our clips have one dimension less - that's plain old 2D.

Clip 1

Clip 2

Visit the official US website here for all the latest updates and information.

Visit the official Ireland and UK website here for all the latest updates and information.

Read some of the early press reviews