Golden Globe organisers the Hollywood Foreign Press Association (HFPA) has been accused of a lack of diversity and shadowy workings.
Earlier this week the body voted in reforms to widen its membership.
But Ms Johansson is among stars and industry figures who say it still needs "fundamental reform".
Why are the Globes being criticised?
The Golden Globes are second only to the Oscars in terms of profile, but organisers have been accused of discriminatory practices, accepting "freebies" and other ethical lapses.
