How does Photoshop turn a picture into a cold film-screen effect?

How does Photoshop turn a picture into a cold film-screen effect?

Original

Final effect

1, in accordance with the Convention first skin, I repair the photo habit is to first pull a layer of color, so that the histogram evenly distributed, the screen will appear not so gray, of course, this is just a person's preference, add after the addition is not called.

2, because the brightness of the face is not enough, appears a bit dirty. So this step is mainly through the pull curve to highlight the face, add mask, only to mention the face of that range, do not have to do very fine.

3, the overall some hair ash, increase the graph layer, improve contrast. But this time the adjustment, resulting in the face is light, so add mask brush several strokes, reduce some brightness.