Continuity mistake: When Helen and Frank are out on their first date, Helen loses her slip in the bar and Frank retrieves it. After that, Helen's slip mysteriously disappears because she is obviously not wearing it (since the girls cut her dress, she would've had to have pinned it back up or else it would be visible). Also, Helen's purse is too small to stuff it into and Frank didn't bring anything to carry it in.
Frank Beardsley: Is that all? Why didn't she tell me?
Helen North: Because you would have said, "Is that all?"
Frank Beardsley: We've decided to use our company manners. Helen, the boys have something to say to you.
Greg Beardsley: Mrs. North, I apologize for putting all that gin in your drink.
Helen North: Ooh, that's what did it.
Rusty Beardsley: And I apologize for all that vodka.
Mike Beardsley: And I apologize for the scotch.
Helen North: Scotch, vodka, and -?
Frank Beardsley: Helen, you've been the victim of an alcoholic Pearl Harbor. It's amazing you survived at all.