Four-time Oscar nominee Michelle Williams has said fighting for pay equality is "the most important thing" she has ever been involved in.

The Hollywood star became embroiled in a pay outrage when it was uncovered that her All the Money in the World co-star Mark Wahlberg received $1.5 million for reshoots on the film while she received less than $1,000. 

The controversy saw Wahlberg subsequently donate his reshoot earnings in Williams' name to Time's Up while Williams has since become involved in the mission to close the gender pay gap.

Speaking during The Hollywood Reporter's drama actress roundtable, she said: "As far as anything that's happened in my life publicly, it's the most exciting and the most important thing that I've ever been involved in.

"I'm so moved, personally and professionally, to have found my place in the conversation and my voice through the conversation.

"[I] feel like I've grown up inside of the conversation. It's the thing that I'll feel the closest to, more than any work that I've ever done, if I can just incrementally move the needle for other women."

The 38-year-old actress said that her story has helped people understand the pay gap better.

She explained: "Something that was interesting that was said to me there was that they were so grateful for me coming to tell this story because it’s hard to see, when you’re talking about $10 versus $14, people have a hard time hearing the difference but when you use an example as extreme as mine, it brings the entire case to come home to rest. The larger example can speak to the other examples."

Williams said controversy over All the Money in the World reshoots helps people undertand pay gap

Williams also said she has noticed a difference in the post #MeToo workplace.

She said: "I feel like the dynamic on sets has changed. They don't hug you anymore. You don't get a morning grope, you get a morning handshake."

"I feel like more space has opened up in the room, in the actual creative process. The space has opened up for me to be able to be heard."

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