Hear something: a sentence, a word, any noise even songs and relate those things to a movie or a song?
Ex: Holes (movie about troubled kids)
My wife said "I can fix that". My automatic thought is of that movie during the flashback scenes the African American man tells the caucasian school teacher all the time "I can fix that".
Or conversation will be going along and they trigger music lyrics and tumble out before your brain realizes they won't have a clue where that came from.