Lawyers for Johnny Depp have questioned the truthfulness of Amber Heard's accusation that Depp sexually assaulted her with a liquor bottle.
Heard was cross-examined for most of the day after her testimony in Depp's libel suit against her.
Depp is suing Heard in Virginia's Fairfax County Circuit Court over a December 2018 op-ed she wrote in The Washington Post describing herself as "a public figure representing domestic abuse".
His lawyers say he was defamed by the article even though it never mentioned his name.
The trial is now in its fifth week.
Depp's lawyer, Camille Vasquez, questioned Heard about a variety of incidents in which she says she was assaulted by Depp.
Questioning was particularly intense over a March 2015 fight the couple had in Australia, shortly after they were married, while Depp was shooting a fifth film in the Pirates of the Caribbean franchise.
It was during that fight that Heard says she was sexually assaulted.
Depp, on the other hand, says he was the victim, and that he lost the tip of his middle finger when Heard threw a vodka bottle at him.
Vasquez questioned why Heard never sought medical attention, even though she said her feet were cut by broken glass and she was bleeding after the attack.
"You're the one who assaulted someone with a bottle in Australia, isn't that right, Ms Heard?" Vasquez asked.
"I didn't assault Johnny in Australia. I didn't assault Johnny ever," Heard responded.
Vasquez then questioned why Heard wrote a series of love notes to Depp in the months after she said she was assaulted.
Heard has said she believed Depp had hit rock bottom after the Australia fight and was committed to sobriety.
She has said most of the assaults occurred while Depp was under the influence of drugs or alcohol.
"When things were good, they were really good," she said.
The jury also saw a recording of a deposition Heard gave in 2016 in connection with her divorce in which she appeared to inadvertently admit that she had tipped off the celebrity news outlet TMZ to aspects of her initial divorce proceedings.
Heard testified to the jury that she was taken aback when paparazzi swarmed her courthouse appearance seeking a temporary restraining order and that she tried to avoid publicity as much as possible.
During the 2016 deposition, though, Heard puts hands to her lips as though she mistakenly blurted something out after she said she wanted Depp to learn of the divorce filing "from some other source other than TMZ, which was alerted...".
"You slipped up there, didn't you, Ms Heard?" Vasquez asked.
"That's not what I'm talking about," Heard responded.
During redirect examination, Heard, said she "asked my team to file in the most discreet way, literally to put it under a stack of papers and file it at the end of the day so it kind of had more of a shot of being missed by the paparazzi and by TMZ".
The redirect questioning of Heard lasted only a few minutes, as Depp's lawyers objected to nearly every question that Heard's lawyer, Elaine Bredehoft, tried to ask.
There was also testimony about Heard's $US100 million ($A142 million) counterclaim against Depp.
She says she was defamed by Depp's lawyer, Adam Waldman, when he called Heard's accusations a hoax.
Heard has said the accusations hurt her career but Vasquez pointed to a series of negative articles about Heard that preceded Waldman's comments.
The jury also heard an audio recording of a verbal fight between the two in which each belittled the other's acting career.
Heard laughed mockingly at Depp's career-making role in the 1980s television show 21 Jump Street.
"Hey, at least I didn't do, like, a teeny show where I'm a heartthrob. God that would be, like, embarrassing," Heard said.
Depp responded with dismissive commentary about Heard's biggest film role to date, shouting "Aquaman!" in a mocking way to denigrate the superhero film.
And Heard took offence when Vasquez suggested that Heard only got the role in Aquaman with Depp's help.
"Excuse me?" Heard said.
"No, Ms Vasquez, I got myself that role by auditioning."
Australian Associated Press
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