Who you gonna call?

"Who you gonna call?" is a famous catchphrase from the movie "Ghostbusters." The full line is "Who you gonna call? Ghostbusters!" It is associated with the theme song of the film and is often used as a playful reference in popular culture. Ghostbusters is a 1984 supernatural comedy film in which a team of paranormal investigators, known as the Ghostbusters, battle ghosts and other supernatural entities in New York City.