The actor, Mark Wahlberg, has donated $1.5m to the Time's Up legal defence fund.
The move comes after it emerged that Wahlberg was paid $1.5m to reshoot scenes for the film All The Money in the World.
His co-star Michelle Williams was paid $80 a day for the extra work.
Scenes had to be reshot after Kevin Spacey was removed from the completed film following the allegations of predatory sexual behaviour against him.
The Time's Up legal defence fund will offer support to people who have experienced sexual harassment, abuse or assault in the workplace.
The Time's Up campaign is a movement against sexual harassment that was founded at the start of January as a response to recent sexual harassment allegations in the media, film, and broadcasting.
The "Silence Breakers" were women and men who spoke out against sexual abuse and harassment.
At the Golden Globes awards ceremony last week, stars such as Oprah Winfrey spoke candidly about the discrimination that women face.
The issue of the equal pay and a "gender pay gap" has become a prominent issue across many sectors in recent months.
The BBC said in a statement that there was "no systemic discrimination against women" at the corporation.