It's set in a dystopian near future where much of the population has been taken over by a fungal infection. Now a group of special children might hold the only possible hope for the future of humanity.
The cast includes Glenn Close, Gemma Arterton and the rightly excellent Paddy Considine. He's playing the part of Sgt Eddie Parks but there's more going on than meets the eye as you can find out in this video interview.
There might be mild spoilers.
The presence of a player like Considine really elevates the material- as he says he's never been in a movie like this before and you get the impression he wouldn't be involved if the film didn't bring something new to the table.