How do you turn a video into a sketch?

Question

Like in those Charles Schwab commercials.

Answer 1

To make your piece interesting, choose more than one scene from the video to draw. Then put them together. Many famous paintings use this technique to tell stories. I don't want to say much more, because your own style will be more interesting than if you copy someone else. Teacher's also use the Internet, and have a very good idea if you copied from someone else.

Answer 2

Stop the video at the frame you want in the finalized sketch.
Use all the connecting frames and adapt these, with a lightboard and magnification, into the sketch you want.