The debate surrounding differing pay for actors and actresses hit headlines following the leak of Sony emails back in 2014 which revealed the female stars of American Hustle were on a seven per cent pay deal, while their male co-stars were on a nine per cent deal.
Jennifer Lawrence, who appeared in the film, and pal Lena Dunham have since spoken out about the lack of equality in Hollywood, but Radcliffe admits he had been unaware of the issue until the email leak, reported Daily Telegraph.
"It's crazy. It is definitely the time for our industry to step up. Especially if we want to pride ourselves on being a liberal, progressive industry then you can't be doing that."
Radcliffe, 26, added he finds it baffling that "American Hustle" bosses had made a decision to pay the film's stars unequally.
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"What I found shocking about the whole 'American Hustle' thing, and please correct me if Im' wrong - but if I have this right, they had all the boys on one deal and all the girls on another deal," he said.
The actor said there are amazing actresses in the world right now and the film industry needs to write better troles for them and pay them well too.