Which famous movie tagline was created after test audiences responded strongly to a specific line of dialogue, leading marketers to build the entire advertising campaign around it?

Taglines are often the first impression audiences have of a film. These short, memorable phrases can define a movie's marketing campaign and sometimes become more famous than the films themselves. Test your knowledge of iconic movie taglines that helped transform films into cultural phenomena. Do you know which marketing slogans launched these blockbusters into the public consciousness?

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"In space, no one can hear you scream." (Alien, 1979)
"Just when you thought it was safe to go back in the water..." (Jaws 2, 1978)
"Houston, we have a problem." (Apollo 13, 1995)
"The first casualty of war is innocence." (Platoon, 1986)