In this video I demonstrate how to custom white balance a DSLR like the Canon T2i for movie mode.
The white balancing steps on my blog:
I learned these steps from AngeloDavidKevin in a comment he provided on one of my videos. I gotta say the community here on Vimeo rocks! Everyone has been extremely helpful providing with tips and ideas to improve my videos.
Dave (I'm not a DSLR expert - just sharing what I learn)