1) Set shutter speed to twice the frame rate as others have mentioned.
Be close. Double is good for fluid movement. Don't be scared to go a little bit out to help exposure. If you are after a specific effect, don't be scared to go a lot out.
2) Select the Aperture that gives you the depth-of-field required for the intended shot(s)
Yes. Don't worry about the effects of focus distance on depth of field. Don't worry about the effects of focal length on depth of field. Just control your depth of field by aperture.
THIS IS ACTUALLY REALLY CROCK ADVICE. USE YOUR APERTURE AS PART OF A TOOL SET.
3) Control your video exposure by:
a) Change ISO to change exposure
This will screw up your edit continuity. At least keep ISO consistent within a scene. Never change it shot to shot within a sequence.
b) Add lighting to increase exposure
CROCK ADVICE. IDEALLY HAVE LIGHTING EVERYWHERE. CONTROL THE LIGHT. DONT LET LIGHT CONTROL THE SHOT. YES MORE LIGHT = BRIGHTER. DUH!
c) Use ND (or VND) filter to reduce exposure
OR APERTURE. VNDS DONT WORK ON WIDE LENSES THAT WELL, WORK TERRIBLY ON TELEPHOTO LENSES AND I"VE YET TO USE ONE WHICH IS ENTIRELY CAST FREE.
a) Changes in ISO affect dynamic range, image noise and color accuracy
AND SHARPNESS AND MOIRE AND CONTRAST
b) Can be expensive with lots of extra logistical/safety considerations
YEP. IT CAN.
c) VND filters are expensive and introduce a color cast. Test and see what works best for you.