Opening Sequence: Five Codes Analysis

I am Legend sequence

Enigma Code and Action Code

The contrast between the two scenarios of the news interview and the deserted streets of New York suggests to the audience that the cancer cure has caused this, however we are no yet introduced to the zombies, which leaves the question as to who else is there apart from Robert Neville.   In this opening we are given no insight into the history of Robert Neville, and makes the audience want to know more about who he is and why he is the only person left.  There is a contrast between the mood of the two different scenes.  One would expect a scene with the cure for cancer to be followed by an upbeat sequence, and the derlict scenes of New York emphasise the clear contrast.  What the opening sequence doesn't do is explain what happened in between the two situations, and the audience would expect this to be explained as the film continues.