"The three of you together. Now that's a picture only Charles Addams could draw"
After Roger Thornhill discovers his love interest Eve sitting with Mr. Vandamm and Leonard at the auction house he bitterly quips, "The three of you together. Now that's a picture only Charles Addams could draw."
The quotation is a reference to the American cartoonist Charles Addams (1912-1988) whose work frequently appeared in The New Yorker magazine. He is most known for creating The Addams Family, a dark and bizarre satirical contrast to the American nuclear family.