There is a cutaway gag about the difficulties of porn movies before sound. In 1896 the Lumiere brothers made the very first movie showing a train pulling into a station. The same year gave us the first strip scene in the French "Bedtime for the Bride", and a Canadian sex comedy "The Widow Jones" that was condemned as "the demonstration of beastial lust not appropriate for a civilized man". Within five years porn films included close up shots of intercourse from multiple positions and visible ejaculations. Within ten years late night XXX porn showings were common in movie houses.
The title is a reference to the film "The Heartbreak Kid".
Katharine Ross plays Mayor West's mother. In reality Ross was 11 years younger than Adam West.