plz anyone tell me how to do this in motion

www.facebook.com/photo.php?v=56148369727...67523&type=2&theater

That would be a lot to explain here. First, he is using an overlay to create the color. Second, he is using a Replicator to make all of those identical pieces (the overlay creating the color). Third, he is using an Attractor Behavior to make them all fall to one spot in the background. Fourth, this is all done in 3D space.

The Apple Pro Training Series: Motion 5 book actually has an exercise that pretty much creates this same effect.

Well… personally, I'd probably start in Photoshop to do the posterisation/custom halftone image, and I'd slice it up there too. Then I'd bring the individual elements into Motion and line them up (ouch). The animation itself is relatively straightforward, and can likely be done with a behaviour rather than having to keyframe every element. Overall it looks to me like it'd be time-consuming but not overly complex.

It may also be possible to do something like this using a Replicator - there's a section in Patrick Sheffield's book How to Cheat in Motion which covers this.

[update: Ben's beaten me to it, and clearly knows more about Replicators than I do. ]

You can create the color overlay directly in Motion, also.