Splicing/glue marks are a problem inherent to anamorphic film because it uses so much of the horizontal area. To combat the flashes often seen at edits, projectionists began using a projector aperture gate that was narrower in the vertical, meaning that when projected Star Wars was actually 2.39-2.4.
As for the other damage in those frames, normally I'd remove them! Also, this sort of thing is precisely what the Legacy forum is for, so no worries there!
_Mike