'The Man in the White Suit' trivia and fun facts

The strange noises made by the laboratory apparatus were created by uncredited sound editor Mary Habberfield and produced for the sound track by a tuba and a bassoon.

Alec Guinness performed the stunt of climbing down the side of the mansion. He was convinced by a technician, that twire holding him up would not break but as he was reaching the ground, the wire did in fact break.