Well when the green channel is misaligned it would have the harsh green lines of fringing, but because of the misalignment, green would be showing through in gradients in places throughout the image where it is supposed to be blending with the other colors, which causes the green cast. You’ll notice you see it most in grey areas (death star walls, imperial uniforms) because that’s where you find the colors channels’ levels being mostly equal to each other, so when the green is misaligned or improperly treated (as I tend to suspect the Tech IB prints were in this case) it shows through alot more visibly. What people need to remember is this is a chemical dye process and little imperfections like channel misalignment and improper treatment of the elements affect the image in different ways than it would if you were working in something digital like photoshop or after effects.