Character mistake: The so-called cobalt chlorium (.) G, which is supposed to be used in the Russian doomsday device, has, according to the Russian ambassador (and Dr. Strangelove), a half-life period of 93 years. He then states that it would contaminate Earth for 93 years. However, per definition half of the radioactivity would still be left after this period. (00:47:30)
Character mistake: When Clouseau and Ballon are playing billiards, and Clouseau accuses Ballon of murdering the chauffeur out of jealously, he accidentally refers to Ballon as "Inspector Ballon". (00:46:20)
Character mistake: The movie opens with the infant Molly Brown in a basket being swept down a raging river. She crashes and crawls up on the bank. No one else is around. But when the grown-up Molly tells her "pa" that she's going to Denver, she says, "Thank you for pulling me out of the flood."