Gif help

[str_i_pped]

Hi there,

I was wondering if anybody knew how to achieve this effect

http://ihateraquelreed.tumblr.com/post/20386454394/all-packed-up-and-ready-to-head-to-viva-las-vegas (for some reason the image wont show up so I'll just link it. 
I am using photoshop CS5 and have a macbook