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What is the precise dialogue that the esteemed actress Ingrid Bergman articulates in the iconic film "Casablanca," and how does this particular line encapsulate the broader themes of love and sacrifice depicted throughout the narrative, particularly in relation to the historical context of World War II?
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In the iconic film "Casablanca," Ingrid Bergman, who plays Ilsa Lund, delivers several memorable lines. One of the most famous exchanges occurs when she says to Rick Blaine, played by Humphrey Bogart, "Play it, Sam. Play 'As Time Goes By.'" Although often misquoted as "Play it again, Sam," this line is significant as it evokes nostalgia and the enduring nature of love amidst the chaos of war.

Another pivotal moment is when Ilsa tells Rick, "If that plane leaves the ground and you're not with him, you'll regret it. Maybe not today. Maybe not tomorrow, but soon and for the rest of your life." This line encapsulates the theme of sacrifice, as Ilsa and Rick must put aside their personal desires for the greater good, reflecting the broader sacrifices made during World War II.

The film's narrative, set against the backdrop of the war, explores themes of love, duty, and sacrifice. Rick's ultimate decision to let Ilsa go with her husband, Victor Laszlo, a resistance leader, underscores the idea that personal sacrifices are necessary for the greater cause of fighting tyranny and oppression. This mirrors the historical context of the time, where individuals often had to make difficult choices for the sake of freedom and justice.
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