Ahead of the much-hyped summer blockbuster Dunkirk by Christopher Nolan, Warner Bros has released Save Every Breath, an immersive VR experience for HTC Vive.

The app delivers the key perspectives of the Battle of Dunkirk - sea, land and air - taking you into one of the biggest military operations of all time. Three tightly woven sequences offer a taste of the much-anticipated film, in which 400,000 Allied soldiers are trapped on the beach of Dunkirk, France, with their backs to the sea as the enemy closes in.

Dunkirk opens on 21st July, while Save Every Breath is available for free download now here.