Let's start with a new document 500x500 pixels

Press "D" to reset your color palletes to black and white.

Create a new layer, then apply the following filter:
Filter->Render->Clouds

Apply: Filter->Blur->Gaussian Blur
Set: 6

Apply: Filter->Blur->Motion Blur
Set: Angle: 90, Distance: 80

Now go to Image->Image Size
Set: width: 300pixels (UNTICK the "Constrain Proportions" option ) then click ok.
So now your document should be 300 width and 500 high.

Next, go to Filter->Artistic->Plastic Wrap
Set: Highlight Strength: 15, Detail:10, Smoothness:10

Apply Filter->Sketch->Chrome
Set: Detail:0, Smoothness: 8