A lack of clear answers, however, didn't stop the film from provoking several mainstream critics to examine their spiritual nature.

Although initially detested by some mainstream critics, the film has now become widely acclaimed.

The piece received mixed reviews from mainstream critics.

The tape-recorder was used to mix sound in the film, a too pre-mature way which would later be criticised by various mainstream critics.

The book can be seen as his critique of those he viewed as mainstream critics.