How can to do the inverse of explode modifier in Blender like the text "CHRIS MACARI" at the beginning in this video
Go to the Video Sequence Editor window (Sequencer) and add the scene animation strip to it (Shift+A-->Scene-->Scene). Check the Backwards checkbox in the Filter panel of the properties shelf (press N being in the Video Sequence Editor window).
I made this addon:
(It contains details on excatly how to do a reverse explosion)
It allows much greater control than simply running the explosion backwards as seen above, although that can be useful.