plot explanation - What is the significance of blue color in I Know Who Killed Me? - Movies & TV

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I watched the movie href="http://en.wikipedia.org/wiki/I_Know_Who_Killed_Me" rel="nofollow noreferrer">I
Know Who Killed Me and i didn't understand the significance of blue color in
the movie. It shows the blue color flowers all the time and even killer use all the blue
color weapons for killing, even victims house decoration is mostly blue. Movie poster
have blue color flower on it.And most of the things are of same blue shade used in
hospitals.

Even in the Aubrey
Fleming house many things are of blue color even the cat muffler is blue
too .

src="https://i.stack.imgur.com/2U8tC.jpg" alt="enter image description here">

So what is the significance of blue color. May
be due to some censer issue while telecasting the movie in India few scenes got cut , so
i didn't got the point behind it. Even some cutting of scenes have been noticed by
me.

Anybody have any clue about
it?

Answer

src="https://i.stack.imgur.com/8sIhb.jpg" alt="Aubrey & Dakota">
^{[ href="http://awesomebadtv.wordpress.com/2011/04/11/i-know-who-killed-me-2007/"
rel="nofollow
noreferrer">Source]}

From
href="http://tvtropes.org/pmwiki/pmwiki.php/Film/IKnowWhoKilledMe?from=Main.IKnowWhoKilledMe"
rel="nofollow noreferrer">TV
Tropes:

Aubrey's world is blue, Dakota's world is
red.

/>From Not Coming to a Theater Near
You:

Aubrey, the good girl, is always blue. Blue
filters, blue clothing, blue roses, blue uniforms for the high school football
teams—right down to the blue gag the villain eventually uses on her.

Dakota, the bad girl, is always
red: red filters, red stripper outfits, red lipstick.