Watch the terrifying trailer to Bird Box

"If you look, you will die" - the words come from Sandra Bullock in the thrilling science fiction-film Bird Box. Watch the trailer above.

The Oscar-winning actress plays Malorie, a mother in a distant dystopian future trying to survive with her two children. They are traviling down a river, and if they remove their blindflod, Malorie warns them: "you will die". Something is out there.