Harvey Weinstein was convicted Monday at his sexual assault trial, sealing his dizzying fall from powerful Hollywood studio boss to archvillain of the #MeToo movement.

The verdict followed weeks of often harrowing and excruciatingly graphic testimony from a string of accusers who told of rapes, forced oral sex, groping, masturbation, lewd propositions and that's Hollywood excuses from Weinstein about how the casting couch works.

The conviction was seen as a long-overdue reckoning for Weinstein after years of whispers about his behaviour turned into a torrent of accusations in 2017 that destroyed his career and gave rise to #MeToo, the global movement to encourage women to come forward and hold powerful men accountable for their sexual misconduct.

The jury of seven men and five women took five days to find him guilty.

The case against the once-feared producer was essentially built on three allegations: that he raped an aspiring actress in a New York City hotel room in 2013, that he forcibly performed oral sex on another woman, production assistant Mimi Haleyi, at his apartment in 2006, and that he raped and forcibly performed oral sex on ``Sopranos'' actress Annabella Sciorra in her apartment in the mid-1990s.

Three additional women who said they, too, were attacked by Weinstein also testified as part of an effort by prosecutors to show a pattern of brutish behaviour on his part.

The Associated Press does not typically identify people who say they are victims of sex crimes unless they grant permission, as Haleyi and Sciorra did.

Jurors signalled their struggles with the Sciorra charges four days into deliberations.

On Friday, after reviewing sections of her testimony and related evidence, they sent a note to the judge indicating they were deadlocked on the counts but had reached a unanimous verdict on the others.

After some debate in the courtroom, the judge ordered jurors to keep deliberating.

While Weinstein did not testify, his lawyers contended that any sexual contact was consensual and that his accusers went to bed with him to advance their careers.

The defence seized on the fact that two of the women central to the case stayed in contact with Weinstein through warm and even flirty emails and had sex with him well after he supposedly attacked them.