Inside Daisy Clover

Inside Daisy Clover is a 1965 American drama film based on Gavin Lambert's 1963 novel of the same name, directed by Robert Mulligan and starring Natalie Wood. It follows an eponymous tomboy who becomes a Hollywood actress and singer.

Man on the beach:
Hey, what happened back there?

Daisy Clover:
[shrugs, yells] Somebody declared a war!