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Safety Last!, American silent film comedy, released in 1923, that was best known for its iconic image of comedian Harold Lloyd hanging from a clock atop a skyscraper. Lloyd played an unnamed young man who poses as a department-store manager to impress his girlfriend. The plan soon goes awry, and he concocts an elaborate scheme to make his ruse appear true. The scheme mandates that Lloyd scale the side of a skyscraper as a “human...