The African Queen . . .
To quote a grumble from Humphrey Bogart, "Well, here comes Miss Ants-in-Her-Pants!"
Well, Katherine was always an up-personality, a definite morning person, and generally quite happy about something -- possibly even of her co-star's general grumpiness.
Being quite recently married to Lauren Bacall, Humphrey had been looking forward to a nice honeymoon on the African continent, but accepted the role in the movie without checking a climate calendar. It was the rainy season, with nearly daily storms.
Anyway, poor Bogey got very sick and the film had to be finished in Florida.