Hi bookworm14,
Welcome to
RP!
I didn't worry about much else but the faces of the couple on your picture... (I just removed the scratches and, partially, the noise on them...)
To remove the burnt spots I used the Red Channel (the least damaged), I run Levels on it to adjust tone and contrast; I, then, created a new empty Layer (Blending>Normal) and, with a soft Airbrush (opacity 10-30%), sampling lightness/darkness from surrounding areas, I carefully painted over the damaged spots.
I created other 2 empty Layers (Blending>Overlay and Multiply) and with a soft black/white brush, I emphasize selected areas on the couple's faces to acheve a 3 dimensional feeling.
I also got acceptable results using:
1) Hue&Saturation targeting and sampling the 'Yellows' of the burnt spots, decreasing the Saturation and incresing Lightness.
2) Selective Colors decreasing to 0 the 'blacks' in the Reds and Yellows.
Please, don't hesitate to contact me if you have any questions...