The joke here is doubly cool. For a time, Heston was considered a kind of parody of a great actor. He had appeared in many big, important classics, including The Ten Commandments, Ben-Hur and Touch of Evil, but before long, he was the star of some big-budget drive-in movies like Planet of the Apes (and sequels) and The Omega Man, yet performed them with the same rock-faced dignity. Was he aware of the course his career had taken? Was he remarkably clueless? Was his ego getting in the way? In 30 seconds, Myers cannily deconstructs Heston by taking a "bad actor" (Al Hansen) out of a totally meaningless scene and replacing him with a "good actor" (Heston). Heston reads a silly speech about a girl he once knew, and Myers leaves -- moved almost to the point of tears. We initially laugh at the idea of Heston as "good actor," but at the end of 30 seconds, we're ready to believe it.
Watch the classic cameo after the jump.