Today we're going to learn a simple way to add a photo to a mobile phone's screen frame. Along the way, we will be using the Polygonal Lasso tool, a layer mask, and a blurring filter to achieve the desired look.
You can follow along and download the assets I am using here:
https://drive.google.com/open?id=0B5Rg7oFSMuQaSWlfd0p6MVpud2s
Photoshop's Layer Masks video: