Some rotoscoping techniques in CS5

Motionworks posted After Effects CS5: Rotoscoping techniques, an E-seminar for Adobe (direct link):

"I demonstrate some techniques for removing footage from a background. We look at luma mattes, masking and the Roto Brush tool. If you’ve watched the Roto Brush tutorial, this time I demonstrate how to make better corrective strokes."

For more on rotoscoping in After Effects & beyond, click on the tag