Most posters aren't made specifically for collecting. That is, they're primarily a form of disposably advertising, which is why they're written on, folded, ripped, etc.
Fading
Movie Poster Blemishes - Overview
By Mr. Movie Poster - Posted on July 14th, 2006
Tagged: Bleed-Through
• Blemishes
• Fading
• Folding
• Holes
• Marks
• Stains
• Tape
• Tears
• Trimming
• Wrinkles
Movie Poster Blemishes - Fading
By Mr. Movie Poster - Posted on June 27th, 2006
Fading - Having a poster in direct sunlight for extended periods of time can cause the poster to fade.
