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Continuity mistake: In the first sequence, when Victoria Dahl falls from a cliff, several shots show her from above and from the same level as she clings to Dick Steele's hand and starts to fall, then a last shot shows her from below as she wags her arms in an attempt to reach the water safely. In the first shots she is wearing sandals with block heels, whereas in the shot from below she (perhaps a stunt-woman) is wearing flats. (00:03:50 - 00:04:18)
Chosen answer: The lady in the red dress is definitely Dr. Joyce Brothers. Her presence is not a spoof of anything. Just another way to add humor to an already humorous movie.