Found a fun cheap effect to play with~. Done on CS5. I added timewarp as wellz. This will come in handy in stop motions...:D Sorry for the incombatible sound effect btw...
What I did (in case ppl ask for tutorials) : It is very simple. I just used a ground crack stock footage, scaled it, masked out my feet and hand to the crack doesnt show on top of them. Timewarp for the slow mo, and wiggle position at the moment of impact. Then saved it, and added smoke in the end :D