The easiest way to fix the glare is to use the Corrections in effects editor and darken the overall scene. This may result in the subject's face being too dark. The more complex method, but the method that could yield far better results is to use the Luma Keyer tool. It would be beyond the scope of this forum for me to try and explain how to use it, so if you Google the term "luma keyer in Pinnacle" you may find a video or description how it works.
