The woman, who cannot be named for legal reasons and was referred to as YZ in a hearing Tuesday, said the disgraced US film producer had sexually assaulted and harassed her while working as his assistant .
It also says that people and associated companies Weinstein had “knowingly helped” the 68-year-old to commit “unlawful acts of assault and harassment” – which prompted an industrial tribunal against him.
Weinstein currently serves a 23 year sentence in a maximum security New York prison after being convicted in March of rape and sexual assault.
He is also said to be ill and supervised in the establishment.
On Tuesday, three Court of Appeal judges considered a preliminary round of the English labor court dispute, involving one of Weinstein’s business associates.
According to the woman, Tim Sarnoff and others “knowingly” aided the convicted rapist in harassing her – which Mr Sarnoff denies.
Mr Sarnoff argued that because of his life and work in the US, unrelated to the UK, a UK court has “no territorial jurisdiction” in the lawsuit against him.
Two judges in previous court hearings have ruled against him – and three appeals judges on Tuesday dismissed his appeal against the most recent of the decisions.
A lawyer leading the woman’s legal team told the remote pre-hearing that her client was a “budding young filmmaker” who had “some of the most serious and amazing allegations a court can see” .
Jonathan Cohen QC said his allegations were alleged to be of “gruesome sexual abuse by Mr. Weinstein” and sexual harassment of a “truly shocking nature” which was “consistent with what for Monsieur Weinstein was found guilty and sentenced in the United States.
“A critical part of YZ’s claim in the labor court is directed against those who control the entities that both employ him and Mr. Weinstein, one of whom is Mr. Sarnoff,” he said. added.
“Equality legislation holds accountable those who ‘knowingly help’ the discriminator.
“It is not difficult to see how this concept applies forcefully to current facts. ”
Leading Mr Sarnoff’s legal team, Diya Sen Gupta QC said his client had “vigorously” denied the allegations against him “in fact and in law”.