The Internet Movie Database (IMDB) has adopted the F-Rating system to highlight films written, directed by or starring women.
F-Rating was introduced in the UK two years ago by Bath Film Festival director Holly Tarquini who created the system to highlight films that are written/directed by a female or have "significant women on screen in their own right".
Her system of classification was inspired by the Bechdel Test, a litmus test for the gender bias of a film.
And now the F-Rating system has been adopted by IMDb, a film information site that receives 250 million users a year.
"The F-Rating is a great way to highlight women on screen and behind the camera", IMDb boss Col Needham told the BBC.
So far, 21,8000 films had been tagged with the F-Rating on IMDb, including American Honey, Mean Girls, Frozen, Bridget Jones' Baby, Animal Farm, Gentlemen Prefer Blondes, Kung Fu Panda 2 and Metropolis.
It has also been adopted in cinemas across the UK and was part of the Film Festival Dublin last year, as curators assessed their listings against the F-Rating's main criteria.
Ms Tarquini told the BBC: "The F-Rating is intended to make people talk about the representation of women on and off screen.
"It's exciting when new organisations decide to join us in shining a light both on the brilliant work women are doing in film and on how far the film industry lags behind most other industries, when it comes to providing equal opportunities to women.
"But our real goal is to reach the stage when the F-Rating is redundant because 50 percent of the stories we see on screen are told by and about film's unfairly under-represented half of the population - women."