I must have gotten a speck of dust in the camera when loading as some of the frames, including this one have a large scratch across the top if you look...but don't look okay. 
I don't know what they used to make those lenses but Vivitar sure did hit the jackpot when it comes to color saturation!
As for the scratch, it's a very easy fix and there are a ton of ways to do it in next to no time.
There's a free photoshop plugin called WireWorm that's designed to remove powerlines and phone wires. That would work.
Then there's in older versions of photoshop, you duplicate the image layer. On the bottom one you run the dust and scratches filter so that the line disappears. Then you make the top layer with the line visible and selected. You can use either the eraser or the marquee tool and delete just the line.
And on PS CS6 and up, you just select it, delete and click the option for background aware delete. That will replace the zone with a custom created texture that looks just like what's on top and under the line.
I've had something like that happen to me before and it turns out it was dust inside the scanner's mirror assembly. You just lock the head, put it sideways and shake it a little and the dust will usually move and sometimes go away.
