"The first new horror creature." "...come prepared!" "He is a human time bomb!" "The Incredible Melting Man" Original Insert. aka "Best regards from Planet Saturn." After a space shuttle pilot is exposed to a near lethal dose of radiation, he returns to Earth and becomes disfigured and his skin starts melting. He becomes unhinged, and starts dismembering people. Supposedly, the screenplay was originally intended as a parody of horror films, but comedic scenes were edited out during production and new horror scenes added. Makeup effects were done by Rick Baker, who originally had four different stages of "melting" but sadly, all but one were cut too. Here's the trailer. From 1977.
An interesting note on movie posters: All original movie posters are printed by National Screen Services Corporation on the year that the film is to be played. Half Sheets and Inserts have a number in each corner. The first two digits of this number are the year of the film and the other digits are the number of the film to be released that year.