Seanjean.com inttro howto question

I was looking at intro sites and i heard from a friend that seanjohn.com has a great intro…

Of course I looked (which i suggest you do[goos stuff])
http://www.seanjohn.com

My Question:
Refering to the effect where the camera seems to move in 3d space and follow the art work “into” the screen
This effect is illustrated after the first segment - when the black lines form a flag ontop of the picture of tyson bedford and move to the picure of the guy ith the red long sleeve shirt…
This effect is also seen with the zipper (easier to describe) where the zipper zips down the screen (the easy part) then does some crazy 3d like stuff

HOW DID THEY DO THIS
I know my way around 3ds max but that seems like overkilll, is it just clever movments of vector artwork?? If it is what software was used to do the movements imageready,preimere,sqift3d?? (Thease are just my guesses)