Goofs:
Continuity: Until the ladder truck shows up for the rescue from the fire escape, the crowd is trying to grab the money that was scattering through the air and onto the ground. In all of the subsequent scenes the money is absent and the crowd reacts as if the rain of cash had never happened. (more)

Trivia:
During filming of the infamous "gas station" destruction, Jonathan Winters was accidentally left on stage and completely bound in thick tape. Hours later, when the cast returned from lunch, they found that he had not even been able to free his arms from the chair. In retaliation, Winters gave a three-hour lecture to Arnold Stang and 'Marvin Kaplan' on forced potty training. (more)

Filming Locations:
Agoura, California, USA (more)

Quotes:
J. Russell Finch: I don't know, I must find my wife. I don't know what to do.
J. Algernon Hawthorne: Look, whereEVER they are, surely the most sensible thing for the two of us to do is to press on. I mean for all we know, your brother in-law may be out or away somewhere. And even if he were the first to be there, he still has to find the money, hasn't he? Now I earnestly recommend that we forget your good ladies and press on with all possible dispatch.
J. Russell Finch: [mockingly] Alright, we'll press on with all possible dispatch.
J. Algernon Hawthorne: And I don't really think that personal rancor is going to help the situation. If I may say so.
(more)

Awards:
Won Oscar. Another 2 wins & 9 nominations (more)