christo,
at a casual glance, nope; they are too mixed on the right. parts of it wouldnt be too bad but the bad area would take a considerable amount of reconstruction.
ok, i just loaded it in
psp and looked at it there. you can do some things like a high contrast/low brightness adjustment layer with just the affected area selected. black and white points helps a bit also and then another selection on the upper right corner with another contrast/brightness adjustment layer on that helped a bit also.
i think what you want to do in general here, is try and bring out the exposure you want as best you can and then, if you're willing for a grueling task, start the clone process.
basically, double exposures are probably the hardest thing to fix. you might think it would just be a case of separating out bit maps, but it just doesnt work that way. every pixel in the affected area becomes a blend of two separate images. they arent stacked on top of each other, sadly. so, you find as much detail as you can and use that to rebuild the area.
the much easier job would be to just crop off the affected area and let it go at that
craig