Amber Heard said Johnny Depp once kicked her to the floor after accusing her of cheating on him with James Franco

• Amber Heard continued to give testimony in her ongoing defamation trial against her ex-husband Johnny Depp.
• On the stand, Heard said Depp "hated James Franco."

Amber Heard testified Thursday that her ex-husband Johnny Depp once kicked her to the floor on a private plane after accusing her of having an affair with the actor James Franco.

Heard — who took the stand for the second day in a row in the ex-couple's ongoing defamation trial in Virginia— said the incident took place in May 2014 when she began shooting the film adaptation of "The Adderall Diaries" alongside Franco in New York.

Heard told the court that she often used her free time during the production to fly back home to visit Depp in Los Angeles and Boston, Massachusetts, the city where he had started production on his own film. When asked by her lawyer whether she had any arguments with Depp about Franco, Heard paused for a long moment, sighed, and described the period of time as a "nightmare."

"He was mad at me for taking a job with James Franco," Heard said of Depp's reaction to the crime drama. "He hated, hated James Franco and was already accusing me of having a secret thing with him in my past because we had done 'Pineapple Express' together."

Heard had a small supporting role alongside Franco in the 2008 stoner comedy "Pineapple Express," directed by David Gordon Green and co-written by Seth Rogen.

The actress continued that Depp had been upset with her and accused her of hiding information about the intimate and romantic scenes she would perform in "The Adderall Diaries," which was released in 2015 and also starred Timothée Chalamet, Ed Harris, and Cynthia Nixon.

"If I wasn't explicit about what I was going to do, I was accused of having withheld information and hiding it from him," Heard said on the stand Thursday.

Heard testified that she told Depp about one of her intimate scenes with Franco on the phone prior to boarding a flight with Depp for his daughter's birthday. Depp became upset and "didn't sound coherent," Heard said.

Heard testified that Depp slapped and kicked her over an intimate scene she had to film with Franco

Heard added that as soon as Depp boarded the plane, she knew "something was wrong." She said Depp walked over to her and began to question her about whether she had hidden any information from him about her intimate scenes with Franco in the film.

"I already know he's drunk. I already know he's using. He reeks of weed and alcohol. His breath smelled so bad and I could anticipate that it was a no-win situation," she said of Depp. "Eventually it went from, 'Do you have something to tell me?' to 'Do you wanna tell me how much you liked it? Tell me did he slip a tongue?' It got worse. He was saying really disgusting things."

In response, Heard said on the stand she slowly got up and walked to the front of the plane. In return, she testified, Depp began to throw things at her, later walking up to her and slapping her in the face. Heard said she proceeded to move once more when Depp kicked her.

"I felt this boot in my back. He just kicked me in the back. I fell to the floor. I caught myself on the floor and felt like I was looking at the floor of the plane for what felt like a long time," she said.

Heard added that this entire incident happened right near Depp's friends and personal staff, including security guards.

"It was the first time anything like that happened in front of somebody," she said. "Nobody said anything. Nobody did anything. You could hear a pin drop on that plane. You could feel the tension but nobody did anything."

This is the second day Heard has given testimony in her ongoing defamation case against Depp. During her first day on the stand, Heard discussed the origins of her relationship with Depp and what she described as the first time he became physically violent during their relationship.

Depp gave five consecutive days of testimony last week, during which he discussed his career, history of drug and alcohol use, and his tumultuous marriage to Heard, which ended in divorce in 2017.