How do I make this effect?

This is what I’m trying to do: 3D layer effect as seen on Harry Potter and the Half-Blood Prince movie site. I want the objects/pictures to move when the mouse moves like in the example.

But I’m pretty new with AS3 and I haven’t been able to find a good tutorial yet on how to do this kind of effect. I found this tutorial but it isn’t really what I’m looking for since the movement doesn’t stop when the mouse stops.

There might just be a really simple solution for this but I need your help finding it:|