"Jaws" released (21-6-1975)

Spot the language link?
...
"the 2-note ostinato which represents the shark, a theme so simple that Spielberg initially thought it was a joke by the composer [John Williams]...a classic piece of suspense music, synonymous with approaching danger...highly recognisable..."
https://en.wikipedia.org/wiki/Jaws:_Original_Motion_Picture_Soundtrack
and, as Crystal points out, used not only in other films (often with comic intent), but quoted in conversation, to signal "approaching danger"...thus becoming (sort of) part of language.