The clip from ‘Blood Simple’ (Cohen Brothers, 1984, USA) is a clear example of how, despite edits, off screen space is still evident.  As the camera cuts away from one character, the other is still heard, in this example as one character vomits in a bathroom, and then runs a tap.  Sometimes, to help show the two characters are still in the same space together, the shot will cut away from the subject mid-sentence from the character who is speaking, not only gauging the other’s reactions, but also clearly depicting it is that person they are speaking to.  This is also demonstrated with the ‘dirty over-the-shoulder’ camera framing technique, in which an out of focus portion of the person speaking occupies one side of the screen, while the other character is in full focus.