“Here’s looking at you, kid" wasn’t drafted in the screenplay but was improvised by Humphrey Bogart in the Parisian scenes. It worked so well that it was used later on again in the film (used four times in total). He originally used the same line in Midnight (1934). It was voted the fifth most memorable line in cinema in AFI’s 100 Years…100 Movie Quotes by the American Film Institute.
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