Shia LaBeouf [I, Robot, Transformers] has bared all in a gut-wrenching music video for Icelandic band Sigur Rós.

The actor, 26, co-stars with dancer Denna Thomsen in a boldly performed experimental film about a man and a woman ‘locked in a never-ending cycle of addiction and desire’.

The eight-and-a-half minute video choreographed by Ryan Heffington is part of The Valtari Mystery Film Experiment.

Sigur Rós recently gave a dozen filmmakers creative freedom to make ‘whatever comes into their head’ when they listen to songs from their new album, Valtari – and Har’el’s is the third in the series.

The film opens with a sombre melody from the last track on the album, Fjögur Píanó.

LaBeouf and Thomsen rise in bed, and labyrinthine scenes of their night together unfold.

Behind a window the pair begin a pas-de-deux, exchanging wardrobes and cryptic gazes as they dress.

‘The idea is to bypass the usual artistic approval process and allow people utmost creative freedom,’ the band said in a statement.

Har’el, recognised for work in modern dance, has yet to comment on the provenance of the film.

The project marks her first since her directorial debut Bombay Beach won Best Documentary at last year’s Tribeca Film Festival.

But the guttural response evoked from the director and other filmmakers involved in the experiment, including Inga Birgisdóttir and Ragnar Kjartansson, is undeniable.

Speaking about the evolution of the project, Sigur Rós said in a statement: ‘We don’t want to tell anyone how to feel and what to take from it. With the films, we have literally no idea what the directors are going to come back with.’

The next film from the series is scheduled to premiere on the band’s website on July 2.

Source: DailyMail