Uma Thurman has accused Harvey Weinstein and his film company of covering up a car crash she was injured in while filming Kill Bill.
The actress has released a video she says is the moment she crashed after being forced to do a stunt she was not happy with.
She says it took director Quentin Tarantino 15 years to pass the footage on to her, but said she did not believe he had withheld it maliciously and they were now on good terms.
In the footage posted on Instagram she can be seen struggling to control the convertible Karmann Ghia before crashing into a palm tree and hitting her head on the passenger seat while filming in Mexico for the first Kill Bill movie in 2002.
She is seen holding the side of her head before slumping backwards motionless then breathing heavily and rolling her head as a crew member reaches into the car and checks her pulse.
Thurman called the circumstances "negligent to the point of criminality".
The video release comes just days after she claimed she was sexually attacked by Weinstein in London's Savoy Hotel.
In an earlier interview she told the New York Times she expressed concerns to director Tarantino about driving the car which she had been warned was faulty.
She claims he told her: "I promise you the car is fine. It's a straight piece of road.
"Hit 40 miles per hour or your hair won't blow the right way and I'll make you do it again."
The 47-year-old actress added: "But that was a deathbox that I was in. The seat wasn't screwed down properly. It was a sand road and it was not a straight road."
In Monday's Instagram post she said it took her 15 years to gain the footage but did not believe Tarantino had witheld it with "malicious intent".
She excused him, saying he remains remorseful about the incident and gave her the footage "with full knowledge it could cause him personal harm".
The actress said she sees it as "atoning" for the danger he put her in.
The actress said she was "proud of him for doing the right thing".
However, she said the "cover up after the fact is unforgiveable", blaming "the notorious Harvey Weinstein", who was the producer, and raging against her agents at Creative Artists Agency (CAA) for their lack of concern.
She said: "They lied, destroyed evidence, and continue to lie about the permanent harm they caused and then chose to suppress.
"The cover up did have malicious intent, and shame on these three for all eternity.
"CAA never sent anyone to Mexico.
"I hope they look after other clients more respectfully if they in fact want to do the job for which they take money with any decency."
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Weinstein has acknowledged making "an awkward pass" 25 years ago at Thurman after "misreading her signals" but a spokesman said he "immediately apologised".
His spokesman said her claims of physical assault are "untrue" and Weinstein is "saddened and puzzled" why his "colleague and friend" has made these allegations now.