Movie Background Texture

I've been playing around with using movie background textures as an alternative to movie source brushes. One nice thing about movie background textures is that you can work at the full res of the individual frame images while randomizing positioning. A lot of movie source brush effects map the frame image into the current brush nib or region fill as brush area. I'm also using the movie background texture to provide texturing to a paint brush that paints with solid color.