European auteurs moved in on the American counterculture by 1970.

Evidence

This introspective turn coincided with the arrival of films by European auteurs that attempted to explicate or exploit the passion of the counterculture. Early 1970 brought ostentatiously with-it movies by three European masters: Michelangelo Antonioni, Federico Fellini, and Jean-Luc Godard. — J. Hoberman, Everything Is Now, 1546