Forwards, backwards and opposite

I found these two videos this morning while I was working on digital storytelling material.  First comes this award winning political ad from Argentina, written by Ricardo Lopez for the Argentinian Political Party Recrear. It won the Silver Lion Award at the Cannes Film Festival in 2006. Don't click away in mid stream - watch it to the end:

There are many spin-offs of this video, one of which is from Penguin Books. The same conditions apply here - watch it all the way through, no matter how difficult it may be:

"This video was prepared by the UK branch of Dorling Kindersley Books and produced by Khaki Films (http://www.thekhakigroup.com/). Originally meant solely for a DK sales conference, the video was such a hit internally that it is now being shared externally."

The creators of the Penguin film (Khaki Films) had, in their turn, been influenced by this one,which they had seen on YouTube:

"This video was created for the AARP's  U@50 video contest by a film student attending Columbia College in Chicago. It placed Second."

Do you think you could write lines like these, to be read backwards and forwards, each direction producing  completely opposite effects? What are the pieces you need to note down before you begin to assemble the "puzzle"?