Are you looking for an effective and easily transportable way to help light your videos? A collapsible reflector like this Impact 42 x72 Impact Five-in-One Collapsible Reflector Kit can eliminate the need for multiple reflectors, diffusers, silks and solids.
As it says, its five in one. The reflector includes a removable, reversible cover which provides a choice of five functional surfaces in three separate configurations: Silver, for crisp, cool fill, Soft-Gold for warmer fill, Black for eliminating unwanted reflections, and Solid White for softer fill.
If you need diffusion, just remove the cover completely and it transforms into a single translucent panel for soft, diffused lighting effects
Suggested use: Ideal for a full length 1-2 adult portrait vertically, 3-4 person portrait horizontally.
It is pretty big so you will need extra hands or a good stand and sandbags to hold it steady if you are working outside.
The only real issue is trying to fold the reflector back up and put it away.
Large reflectors like these are always a challenge to put away until you have done it enough times. Luckily here is good video on how to fold reflectors. http://youtu.be/SKVaz_95RjE