Correcting video flicker problem caused by camera's auto white balance
Probably not easily.  You might be able to try applying a better auto-white balance and hope for the best.  You could also manually adjust it repeatedly and adjust the interpolation between values (on the animation curves) but this is highly time consuming and still won't get as good of a result as reshooting.

If reshooting is an option, it's going to probably be the quickest, easiest and best looking solution.  If not, then your stuck trying some very painful and time consuming adjustments.