• You have to be realistic in the use of blood in the movies. There is a little bit more than a gallon in a human being. If you have a few thousand people, that makes a lot of blood. I'm very realistic in my use of blood.

    Alexandre Aja: You have to be realistic in the use of blood in the movies. There is a little bit more than a gallon in a human being. If you have a few thousand people, that makes a lot of blood. I'm very realistic in my use of blood.
    Source: collider.com