This is the last appearance of Brian Haley as "Budd Bronski".
Helen says she is reading 'Don Quixote' and does not understand the passage, "My heart is wax molded as she pleases, but enduring as marble to retain". While that was written by Miquel de Cervantes, it is from 'La Gitanilla", The Little Gypsy.
The $500/day Antonio is receiving for being the chauffeur of Mr, DeCarlo, is equivalent to, when adjusted for inflation, $838.16 per day, or $217,921 annually in 2021 dollars. [April 2021]