Matt Damon and George Clooney opened up about the predatory behavior of their some-times boss and one-time friend Harvey Weinstein on 'Good Morning America,' with Damon also throwing his friend Ben Affleck under the bus.

In an interview that aired on Monday morning, both men said that they knew Weinstein was a 'bully' and 'womanizer' who bragged of bedding actresses, but had no idea about the level of criminal behavior that was occurring behind closed doors in hotels.

Damon also confessed that he was aware Weinstein had sexually harassed 'the first lady of Miramax' Gwyneth Paltrow just before the actress shot the 1996 film adaptation of Jane Austen's 'Emma' for the studio.

'I knew the story about Gwyneth from Ben [Affleck] because he was with her after Brad [Pitt] and so I knew that story,' said Damon.

'But I was working with Gwyneth and with Harvey on [the 1999 film "The Talented Mr.] Ripley."

He then added: ' I never talked to Gwyneth about it but Ben told me that whatever or agreement they had come to there was an understanding ... and he treated her incredibly respectfully. Always.'

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Confessions of dangerous minds: Matt Damon and George Clooney sat down to discuss the Harvey Weinstein sexual harassment and assault scandal with 'Good Morning America' (above)

Three's a crowd: 'I knew the story about Gwyneth from Ben [Affleck] because he was with her after Brad [Pitt] and so I knew that story,' said Damon (Affleck with Weinstein and then-girlfriend Paltrow at the Miramax afterparty following the 1998 Golden Globes)

This admission will no doubt lead to more backlash for Damon, who was one of the last people to speak out against Weinstein while at the same time being one of the few to confess that they were in fact aware of at least one incident.

Paltrow said that she told Pitt at the time, and he immediately confronted Weinstein, who in turn 'screamed' at Paltrow and told her to never speak about the incident again according to The New York Times.

Damon is still just the fourth actor to publicly state that he was aware of at least one incident that occurred between Weinstein and one of his stars, save the victims.

In the days after The New York Times first broke their story, 'Family Guy' creator Seth MacFarlane admitted that he had learned about the mogul's behavior from actress and victim Jessica Barth while Platrow's 'Emma' co-star Toni Collette revealed she had heard 'numerous, very real stories about other actresses being sexually harassed and/or abused by him.'

Then, just last week, Paltrow's mother Blythe Danner spoke about when she learned about the incident in an op-ed for The New York Times published after columnist Maureen Dowd was critical of her Oscar-winning daughter for not doing more to stop Weinstein.

Affleck and Pitt have not spoken about the incident, and Damon's revelation that he learned about Weinstein's behavior from his friend may cause even more problems for embattled actor as it seems to contradict his initial statement.

'I am saddened and angry that a man who I worked with used his position of power to intimidate, sexually harass and manipulate many women over decades,' said Affleck almost one week after news of the scandal broke in a carefully-worded response that seemed to suggest he had never before heard any of the allegations.

Damon's decision to characterize the relationship between Paltrow and Weinstein as 'always' respectful is a bit odd as well, considering her admission that she had been sexually harassed by the mogul is part of the reason the men were sitting down for the interview.

Clooney meanwhile said that like many of Weinstein's victims, he had been told a number of times by the mogul that he was bedding a number of stars.

'Harvey would talk to me about women that he had had affairs with,' said Clooney.

'I didn't necessarily believe him quite honestly, because to believe him would be to believe the worst of some actresses who were friends of mine, and I didn't really think that they had affairs with Harvey - and clearly they didn't.

He then added: 'But the idea that this predator, this assaulter was out there silencing women like that, it's beyond infuriating. And the fact that the story is coming out now and the more it comes out, I want to know all of it.'

Don't stand so close to me: Clooney said Weinstein spoke about affairs with stars but he never believed the tales suggesting the 'worst of some actresses who were friends of mine' (Clooney and Weinstein above in 2008)

Miramax royalty: Damon said that he had never discussed the incident between Paltrow and Weinstein with the actress (pair above in 2011)

Damon was a bit more blunt in his assessment of Weinstein's persona, having witnessed it first-hand when he starred in a string of Miramax films during the mid to late nineties

He was one of the few that had been part of the exclusive coterie of actor and actresses the studio favored at the height of Weinstein's power, along with the likes of Cate Blanchett, Philip Seymour Hoffman, Ewan McGregor and the aforementioned Paltrow, Affleck and Collete.

'He bought "Good Will Hunting" and shot it in '97 and I did three movies after that, he signed me to a three-picture deal,' explained Damon.

'That was the height of his power.'

He continued: 'I mean, you had to spend about five minutes to know he was a bully. He was intimidating. That was his - that was his legend. That was his whole kind of M.O.'

This description of the movie boss also lines up with the accounts given be the victims, who said they could not turn down the powerful executive when he made demands to meet them in a hotel room or asked them to succumb to his demands.

'Like could you survive a meeting with Harvey. Could you survive -- could you stand up for yourself with Harvey,' Damon went on to say in a poorly elected turn of phrase.

'So when people say, "Everybody knew," like, yeah, I knew he was an a**hole. I mean, he was proud of that. You know what I mean? That's how he carried himself.'

He then stated: 'I knew he was a womanizer. You know, I wouldn't want be to married to the guy but I'm not - it's not my business really.'

Damon later said that many were unaware because the incidents too place behind closed doors.

'He didn't do it out in the open,' said Damon.

'If there was ever an event where there was something I was at with Harvey in public and he was doing this thing and I missed it, and there's some woman who was somehow assaulted and was at the Golden Globes or something and I somehow missed it, then I'm sorry.'

Clooney later wrapped up the interview by stating the sexual harassment and assault that is now being revealed in Hollywood is not exclusive to that industry.

'There has to be a comeuppance for all of that, all those people part of the chain and then have to make it safe to feel people can talk about this, and in doing that I think that will scare away that kind of behavior, ' said Clooney.

'But more than anything, you're going to have to have a warning shot over the bow of anyone that would act like that that you will be outed and out of the business and more than that you might be prosecuted.'

He then name dropped his famous wife Amal by going on to say: 'I talked with my wife about this, and she said she could find in her line of work, which is human rights law, there have been plenty of instances where some guy in power has tried to make their move.'

Clooney said that the sad reality is, most women deal with this behavior.

'I think that's a little bit of a surprise to some of us, that it's this big, that it's this prevalent,' said Clooney.

'And maybe that's something else that's good is that we're going to have these discussions and have this conversation and again we'll make it harder for it to happen.'

The way they were: Damon dated Winona Ryder (left in 2000) from the late nineties through early aughts, around the time her friendship with Platrow (right in 1998) ended

Romance: Affleck and Paltrow split after a few years together, but were datign when she won her Best Actress Oscar (pair above in 1999)

Paltrow detailed her encounter with Weinstein for the second New York Times expose.

'I was a kid, I was signed up, I was petrified,' said Paltrow, who revealed that when she was told to meet Weinstein in his hotel room she did not think anything suspicious of it because it came on a fax from Creative Artists Agency.

Once she arrived at the hotel, he began to massage her and then asked her to join him in the bedroom.

She rejected his advance and drove away devastated, thinking: 'I thought you were my Uncle Harvey.'

She told then-boyfriend Brad Pitt about the incident she said, who then confronted Weinstein.

Weinstein came back to the actress and told her to never tell anyone what happened between them again.

'He screamed at me for a long time,' said Paltrow.

'It was brutal.'

A few years later she was a superstar and Oscar winner, but she did not have the power to share her story.

'I was expected to keep the secret,' said Paltrow, who called Weinstein 'alternately generous and supportive and championing, and punitive and bullying.'

She has now decided however to no longer staying quiet.

'We’re at a point in time when women need to send a clear message that this is over,' said Paltrow.

'This way of treating women ends now.'

Weinstein is said to be in rehab but there has still been nothing to prove this claim, and now over 60 women have come forward with allegations of sexual harassment and assault.

'Any allegations of non-consensual sex are unequivocally denied by Mr. Weinstein. Mr. Weinstein has further confirmed that there were never any acts of retaliation against any women for refusing his advances,' said a spokesperson for Weinstein.

'Mr. Weinstein obviously can’t speak to anonymous allegations, but with respect to any women who have made allegations on the record, Mr. Weinstein believes that all of these relationships were consensual.

'Mr. Weinstein has begun counseling, has listened to the community and is pursuing a better path. Mr. Weinstein is hoping that, if he makes enough progress, he will be given a second chance.'