Bullet trail effect (How to?)

Like in the Matrix, how to make the bullet trail effect?

Maybe create some sort of wave brush?

I'm not sure I understand what you are asking.
Do you have a link to something similar?
Can you give us a little more info?

Ahhhh!, I just caught on...

Popped in the DVD

you mean the seemingly displaced air as the bullet travels.

Let me tinker with that a little....I'll see if I can come up with something similar.
Maybe someone will chime in with a hint or two.

This one just popped in my head when you mentioned it. Maybe using the water drop effect in the tutorial below. You could make a series a droplets and toy with their shape and opacity and line them up. Maybe toss in a motion blur when all is said and done......just an idea. I'm at work, :mad:, and can't play around with it!
the tut. is here: http://www.teamphotoshop.com/photoshop/tutorials/techniques/drop2/dropphoto.php
Later,
Justin

REAL good idea Grass,

using that tutorial in conjunction with a little motion blur and maybe a tiny bit of ripple filter, "should" give you a pretty good clone of the effect.

I toyed with this a little bit before reading Justin's post, and to get the initial shape I just used a "hard" paintbrush to draw the shape on a layer by itself. I was playing around with the ripple filter and blendmodes but never really got anything I'd show anyone. ;)
I'm gonna roll across the room and go give Justin's idea a try....