 In the 1960s "art film" became a euphemism in the U.S. for racy Italian and French B-movies.By the 1970s, the term was used to describe sexually explicit European films with artistic structure such as the Swedish film "I Am Curious (Yellow)".The 1960s was an important period in art film; the release of a number of groundbreaking films giving rise to the European art cinema which had countercultural traits in filmmakers such as Michelangelo Antonioni, Federico Fellini, Pier Paolo Pasolini, Luis Buñuel and Bernardo Bertolucci.