Bleed-thru refers to being able to see marking made on the back of a poster on the front of the movie poster after the ink (grease pencil, marker, etc.) soaks into the paper and 'bleeds-through.'

Bleed-thru refers to being able to see marking made on the back of a poster on the front of the movie poster after the ink (grease pencil, marker, etc.) soaks into the paper and ''bleeds-through.''