It’s been 30 years since Melanie Griffith strapped on her sneakers and strode off the Staten Island Ferry in Working Girl.

The iconic 1988 movie about Tess McGill, a smart and ambitious receptionist who exacts revenge on her idea-stealing boss Katharine (Sigourney Weaver) and climbs the career ladder in the brutal world of Wall Street was the ne plus ultra of workplace comedies, speaking directly to a generation of women who weren’t going to let themselves be downtrodden or gaslighted in the office.

A huge success, it was nominated for five Oscars, including three acting nominations for its stars Griffith, Weaver and Joan Cusack, who played Tess’ wise-cracking best friend Cynthia. It also featured a young Harrison Ford as a dashing investment banker, a cinematic turn we remain eternally grateful for.

To celebrate the 30th anniversary of the release of the movie, The Hollywood Reporter spoke to the key castmembers and filmmakers about the secrets from behind-the-scenes of the groundbreaking film. Here are some of our favourite revelations:

7 things you never knew about Working Girl