Posted By:
hankronA local movie poster expoert told me this: Say a nice old movie poster is restored from GdVg to Mint. The restored poster is worth more than the GdVg but less than than unrestored Mint.
This difference between a T206 and movie posters is that a movie poster is, say, 3x2 feet, on thin and delicate paper, and typically intended to be display on a wall for public viewing (sometimes while people are snacking or dining). In some cases, a movie poster has to be repaired/backed or it will literally fall apart if displayed. Try framing for your living room wall a 3x2 foot sheet of tissue paper.
Important to note: This mentioned movies poster expert bought, sold and owned many restored posters and, obviously, did not have a problem with movie posters being restored. However, even he said that a seller had to clearly state that a poster was restored (and the extent of the restoration) when selling.