Gabrielle Union will "never regret speaking up" about her experiences in Hollywood

Speaking to Naomi Campbell on the supermodel's 'No Filter' web series, she said: "When you walk in to a space and you recognise that change needs to happen sooner than later, [it's important] to speak up.

"And I'm confident that the wheels of change are turning faster, and we'll reach an amicable agreement. I will never regret speaking up. Ever. Never ever."

Gabrielle noted that racism is still a major issue in Hollywood - and society as a whole - and she has been struck by the "anti-blackness" of the film industry throughout her career.

She added: "[It was] jarring and shocking, and it still is.

"There's a very narrow idea of what kind of black girl was acceptable and marketable."

Back in June, the 'Being Mary Jane' star filed a discrimination complaint against NBC, Simon Cowell, FremantleMedia and Syco Entertainment in California's Department of Fair Employment and Housing.

However, the case has since been closed as she instead requested an immediate right to sue, which she was granted.

Her official complaint came after NBC previously conducted an independent investigation into Gabrielle's allegations regarding 'AGT', but she was unhappy with how it was handled.

She said at the time: "They were like, 'We're going to commission this independent investigation.' Well, silly me. I thought independent was independent, but when NBC and Fremantle and Syco pay for that investigation, they control it.

"They turn over what they believe to be inflammatory things, or things that are not advantageous to me, over to the head of NBC, Paul Telegdy, who uses those things that he thinks are smoking guns to shoot down my claims.

"He then threatens my agent [by saying,] 'Gabrielle better watch who she calls a racist' in the middle of an investigation about racism and discrimination. This is what's happening from the top of the company."

NBC previously insisted it was "categorically untrue" that any threats had been made towards the star.

They said in a statement: "We took Ms. Union's concerns seriously, and engaged an outside investigator who found an overarching culture of diversity on the show. NBCUniversal remains committed to creating an inclusive and supportive working environment where people of all backgrounds are treated with respect."